Accounting Policies [Abstract] Preparation of Financial Statements and Use of Estimates Use of Estimates, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Command Transportation, LLC [Member] Command Transportation, LLC [Member] Command Transportation, LLC [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Statutory Tax Rate Statutory Tax Rate Statutory Tax Rate Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Deferred Finance Costs, Net Deferred Finance Costs, Net Common stock, par value $0.0001 per share, 100,000,000 shares authorized, 23,415,573 and 23,207,051 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively Common Stock, Value, Issued Proceeds from Equity Offering if Underwriters Exercise Option Proceeds from Equity Offering if Underwriters Exercise Option Proceeds from Equity Offering if Underwriters Exercise Option Debt Instrument, Face Amount Debt Instrument, Face Amount Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Convertible Notes, Underwriter Option to Purchase Convertible Notes, Underwriter Option to Purchase Convertible Notes, Underwriter Option to Purchase Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Stockholders' Equity Attributable to Parent Stockholders' Equity Attributable to Parent Acquisition Purchase Price, portion to be paid in common stock Acquisition Purchase Price, portion to be paid in common stock Acquisition Purchase Price, portion to be paid in common stock Acquisition Purchase Price, portion to be paid in restricted stock Acquisition Purchase Price, portion to be paid in restricted stock Acquisition Purchase Price, portion to be paid in restricted stock Acquisition Purchase Price, portion to be paid in stock Acquisition Purchase Price, portion to be paid in stock Acquisition Purchase Price, portion to be paid in stock Acquisition Purchase Price, portion to be held in escrow to satisfy potential termination fees Acquisition Purchase Price, portion to be held in escrow to satisfy potential termination fees Acquisition Purchase Price, portion to be held in escrow to satisfy potential termination fees Common stock, shares issued Common Stock, Shares, Issued Shares, Underwriter Option to Purchase Shares, Underwriter Option to Purchase Shares, Underwriter Option to Purchase Convertible Debt Convertible Debt Deferred income taxes Deferred Tax Liabilities, Net, Noncurrent Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Payables and Accruals [Abstract] Components of accrued liabilities Schedule of Accrued Liabilities [Table Text Block] Line of Credit [Abstract] Line of Credit [Abstract] Revolving Credit Facility Debt Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Stock Options Employee Stock Option [Member] Restricted stock Restricted Stock [Member] Performance and Market Based Stock Performance and Market Based Stock [Member] Performance and Market Based Stock [Member] Stock based compensation plans: Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock-based compensation expense Allocated Share-based Compensation Expense Tax benefits from stock-based compensation expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Grants in period, options Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Grants in period, other than options Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period New Accounting Pronouncements and Changes in Accounting Principles [Abstract] New Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Business Combinations [Abstract] Income Tax Disclosure [Abstract] Reconciliation of effective income tax rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Line of Credit Facility [Table] Line of Credit Facility [Table] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Repayments of Lines of Credit Repayments of Lines of Credit Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases Proceeds from borrowing Proceeds from Lines of Credit Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Fair Value Disclosures [Abstract] Financial liabilities measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Reconciliation of the beginning and ending balances for the liabilities measured at fair value using significant unobservable inputs Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Financial statements: Statement [Line Items] Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss) Attributable to Parent Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Deferred income taxes Deferred Income Tax Expense (Benefit) Noncash stock compensation expense Share-based Compensation Change in contingent consideration due to seller Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Depreciation and amortization Depreciation, Depletion and Amortization Change in assets, net of acquisitions: Increase (Decrease) in Operating Assets [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Taxes receivable Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Change in liabilities, net of acquisitions: Increase (Decrease) in Operating Liabilities [Abstract] Accounts payable Increase (Decrease) in Accounts Payable Accrued expenses and other Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Payments for acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Tax benefit of stock options exercised Deferred Tax Expense from Stock Options Exercised Payment of contingent consideration Payments of Merger Related Costs, Financing Activities Issuance of shares, net of issuance costs Proceeds from Issuance of Common Stock Employee tax withholdings related to net share settlements of equity-based awards Payments Related to Tax Withholding for Share-based Compensation Repayments of amounts borrowed Payment to former owners of One Stop Logistics Payment to Former Owners of Acquired Business Payment to Former Owners of Acquired Business Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Supplemental disclosure of cash flow information Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest Interest Paid Cash paid during the period for income taxes Income Taxes Paid Due to seller Contingent Earnout Payments Increase Due to New Acquisitions Contingent Earnout Payments, Increase Due to New Acquisitions Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, general and administrative expenses Selling, General and Administrative Expenses [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Contingent consideration Contingent Consideration [Member] Contingent Consideration [Member] Fair value measurement: Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Discount rate used to determine fair value of contingent consideration Business Acquisition, Contingent Consideration, Discount Rate Used to Determine Fair Value Business Acquisition, Contingent Consideration, Discount Rate Used to Determine Fair Value Liabilities: Liabilities, Fair Value Disclosure [Abstract] Contingent consideration obligation Obligations, Fair Value Disclosure Reconciliation of the beginning and ending balances of the liabilities measured at fair value Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at beginning of period Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Increase related to acquisition of OFS Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Change in fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Balance at end of period Subsequent Events [Text Block] Subsequent Events [Text Block] Accrued Expenses and Other Noncurrent Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Acquisitions Business Combination Disclosure [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Xpress Solutions [Member] Xpress Solutions [Member] Xpress Solutions [Member] Goodwill: Goodwill [Line Items] Goodwill roll-forward: Goodwill [Roll Forward] Balance at beginning of period Goodwill Goodwill, Acquired During Period Goodwill, Acquired During Period Balance at end of period Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Earnings Per Share [Abstract] Computation of basic and diluted earnings per common share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Gain Contingencies [Table] Gain Contingencies [Table] Shipper Direct Logistics, Inc. Shipper Direct Logistics, Inc. [Member] Shipper Direct Logistics, Inc. [Member] Gain Contingencies, Nature [Axis] Gain Contingencies, Nature [Axis] Gain Contingency, Nature [Domain] Gain Contingency, Nature [Domain] Positive outcome of litigation Positive Outcome of Litigation [Member] Gain Contingencies [Line Items] Gain Contingencies [Line Items] Unrecorded amount of gain contingency Gain Contingency, Unrecorded Amount Gain Contingency, Punitive Damages Gain Contingency, Punitive Damages Gain Contingency, Punitive Damages Income Statement [Abstract] REVENUE Transportation Services Revenue The total dollar amount of transportation and transportation-related services charged to customers during the period. COSTS AND EXPENSES: Costs and Expenses [Abstract] Transportation costs Cost of Purchased Transportation and Related Services The total costs of purchased transportation and transportation-related services to meet customer needs during the period. Selling, general, and administrative expenses Selling, General and Administrative Expense INCOME FROM OPERATIONS Operating Income (Loss) Interest expense Interest Expense, Debt Other expense Other Nonoperating Income (Expense) OTHER EXPENSE, NET Other Expense Other Expense is the aggregate of interest income, interest expense, and other income and expenses. INCOME BEFORE PROVISION FOR INCOME TAXES Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest INCOME TAX EXPENSE Income Tax Expense (Benefit) NET INCOME Basic net income per share (USD per share) Earnings Per Share, Basic Diluted net income per share (USD per share) Earnings Per Share, Diluted Schedule of Subsequent Events [Table Text Block] Schedule of Subsequent Events [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Business Acquisition [Line Items] Business Acquisition [Line Items] Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Goodwill Business Acquisition, Goodwill, Expected Tax Deductible Amount Business Acquisition, Goodwill, Expected Tax Deductible Amount Weighted average useful life Finite-Lived Intangible Asset, Useful Life Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Business Combination, Contingent Consideration, Liability Business Combination, Contingent Consideration, Liability Fair Value Measurement Fair Value Disclosures [Text Block] Intangibles and Other Assets Goodwill and Intangible Assets Disclosure [Text Block] Other noncurrent liabilities Other Liabilities, Noncurrent Accrued compensation Accrued Salaries, Current Accrued rebates Accrued Rebates, Current Accrued Rebates Accrued Employee Benefits Accrued Employee Benefits Deferred rent Deferred Rent Credit, Current Other Other Accrued Liabilities, Current Total accrued expenses Accrued Liabilities, Current Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Anti-dilutive sercurities excluded from the calculation of earnings per share: Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Stock options excluded from the calculation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Denominatior for basic earnings per share-weighted-average shares (in shares) Weighted Average Number of Shares Outstanding, Basic Employee stock options/Unvested Restricted Stock (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Denominator for dilutive earnings per share (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic net income per common share (USD per share) Diluted net income per common share (USD per share) Stock Based Compensation Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Roll-forward of goodwill Schedule of Goodwill [Table Text Block] Summary of amortizable intangible assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Estimated amortization expense for the next five years and thereafter Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Increase (decrease) in stockholders' equity: Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares at beginning of period Common Stock, Shares, Outstanding Stockholders' equity at beginning of period Share compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Common stock issued for vested restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Common stock issued for vested restricted stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Share-based Compensation, Gross Stock Issued During Period, Shares, Share-based Compensation, Gross Stock Issued During Period, Value, Share-based Compensation, Gross Stock Issued During Period, Value, Share-based Compensation, Gross Common shares withheld and retired to satisfy employee tax witholding obligations upon vesting of restricted stock (in shares) Shares Paid for Tax Withholding for Share Based Compensation Common shares withheld and retired to satisfy employee tax withholding obligations upon vesting of share-based awards Adjustments Related to Tax Withholding for Share-based Compensation Tax benefit from exercise of stock options Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Common stock, shares at end of period Stockholders' equity at end of period Legal Matters Legal Matters and Contingencies [Text Block] Income Taxes Income Tax Disclosure [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Legal matters: Loss Contingencies [Line Items] Returned purchase price Business Acquisition, Returned Purchase Price Business Acquisition, Returned Purchase Price Earnings Per Share Earnings Per Share [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Customer relationships Customer Relationships [Member] Non-compete agreements Noncompete Agreements [Member] Trade names Trade Names [Member] Intangible assets: Finite-Lived Intangible Assets [Line Items] Summary of amortizable intangible assets: Finite-Lived Intangible Assets, Net [Abstract] Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Intangible assets, net Finite-Lived Intangible Assets, Net Amortization of expense Amortization of Intangible Assets Estimated amortization expense for hte next five years and thereafter: Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] Remainder of 2015 Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Income before provision for income taxes Income tax expense Effective tax rate Effective Income Tax Rate Reconciliation, Percent Statement of Financial Position [Abstract] Current assets: Assets, Current [Abstract] Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Customer relationships and other intangible assets, accumulated amortization Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares oustanding Assets Assets [Abstract] Accounts receivable, net of allowance for doubtful accounts of $1,006,448 and $1,226,297 at March 31, 2015 and December 31, 2014, respectively Accounts Receivable, Net, Current Income taxes receivable Income Taxes Receivable, Current Prepaid expenses Prepaid Expense, Current Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance, Current Other current assets Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Intangible assets: Intangible Assets Including Goodwill [Abstract] Intangible assets including goodwill [Abstract] Intangible assets, net of accumulated amortization of $16,178,648 and $15,046,556 at March 31, 2015 and December 31, 2014, respectively Intangible Assets, Net (Excluding Goodwill) Other assets Other Assets, Noncurrent Total assets Assets Liabilities and stockholders' equity Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Trade, Current Due to seller-short term Business Acquisition Contingent Consideration at Reporting Period Fair Value Current Current portion of the fair value, as of the financial statement date, of potential payments under the contingent consideration arrangement, including cash and shares as applicable. Accrued expenses Other current liabilities Notes Payable, Current Total current liabilities Liabilities, Current Due to seller-long term Business Acquisition Contingent Consideration at Reporting Period Fair Value Noncurrent Noncurrent portion of the fair value as of the acquisition date of potential payments under the contingent consideration arrangement, including cash and shares as applicable. Total liabilities Liabilities Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity