Equity Components [Axis] Common Stock [Member] Additional Paid-in-Capital [Member] Accumulated Earnings (Deficit) [Member] Plan Name [Axis] 2015 Long-term Incentive Plan [Member] Award Type [Axis] Stock Options [Member] Warrants [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Exclusive License Agreement [Member] Title of Individual [Axis] Dr. Brent Satterfield [Member] Dr. Satterfield [Member] Convertible Preferred Stock [Member] Scenario [Axis] Per Month [Member] Concentration Risk Type [Axis] Customer Concentration Risk [Member] Concentration Risk Benchmark [Axis] Accounts Receivable [Member] Customer [Axis] Two Customers Together [Member] Measurement Frequency [Axis] Fair Value, Recurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Options [Member] Third Parties [Member] Restricted Stock [Member] Geographical [Axis] United States [Member] Rest of World [Member] Stock [Member] Restricted Stock Units [Member] Restricted Stock Units [Member] Range [Axis] Minimum [Member] Maximum [Member] Revenue Benchmark [Member] Three Customers Together [Member] Antidilutive Securities [Axis] Options [Member] Cover [Abstract] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Statement of Financial Position [Abstract] Assets Current assets Cash and cash equivalents Marketable investment securities Accounts receivable, net Inventory Prepaid expenses Deferred tax asset Total current assets Property and equipment, net Investment in joint venture Total assets Liabilities and stockholders' equity Current liabilities Accounts payable Accrued expenses, current Accrued expenses (related party), current Income taxes payable Deferred revenue Total current liabilities Long-term liabilities Accrued expenses, noncurrent Accrued expenses (related party), noncurrent Total long-term liabilities Total liabilities Commitments and contingencies (Note 9) Stockholders' equity Convertible preferred stock, $0.001 par value; 5,000,000 shares authorized; 0 shares issued and outstanding as of March 31, 2021 and December 31, 2020 Common stock, $0.001 par value; 100,000,000 shares authorized; 28,665,714 and 28,558,033 shares issued and outstanding as of March 31, 2021 and December 31, 2020, respectively Additional paid-in capital Accumulated earnings Total stockholders' equity Total liabilities and stockholders' equity Convertible preferred stock, par value Convertible preferred stock , shares authorized Convertible preferred stock, shares issued Convertible preferred stock, shares outstanding Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Revenue Cost of revenue Gross profit Operating expenses Sales and marketing General and administrative Research and development Depreciation and amortization Total operating expenses Income (loss) from operations Other income (expense) Interest income Gain (loss) on equity method investment in joint venture Total other income (expense) Income (loss) before income taxes Income tax provision Net income (loss) Earnings (loss) per common share: Basic Diluted Weighted average shares outstanding: Basic Diluted Statement of Cash Flows [Abstract] Cash flows from operating activities Net income (loss) Adjustments to reconcile net income (loss) to cash used in operating activities: Stock-based compensation expense Loss (gain) from equity method investment Deferred income taxes Bad debt expense Changes in assets and liabilities: Accounts receivable Prepaid and other assets Inventory Deferred revenue Income taxes payable Accounts payable and accrued expenses Net cash provided by (used in) operating activities Cash flows from investing activities Purchases of property and equipment Proceeds from maturities of marketable investment securities Investment in joint venture Net cash provided by (used in) investing activities Cash flows from financing activities Proceeds from sale of common stock Proceeds from exercise of options and warrants Payment of offering costs Net cash provided by financing activities Net increase in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosure of cash flow information Interest paid Income taxes paid Statement [Table] Statement [Line Items] Beginning balance Beginning balance, shares Common stock issued for option exercises Common stock issued for option exercises, shares Stock-based compensation expense Stock-based compensation expense, shares Public offering, net of offering costs of $1,457,922 Public offering, net of offering costs of $1,457,922, shares Common stock issued for warrant exercises Common stock issued for warrant exercises, shares Conversion of preferred stock to common Conversion of preferred stock to common, shares Net Income (loss) Ending balance Ending balance, shares Statement of Stockholders' Equity [Abstract] Public offering costs Accounting Policies [Abstract] Overview and Basis of Presentation Summary of Significant Accounting Policies Fair Value Disclosures [Abstract] Fair Value Measurements Revenue from Contract with Customer [Abstract] Revenue Earnings Per Share [Abstract] Earnings Per Share Share-based Payment Arrangement, Disclosure [Abstract] Stock-Based Compensation Income Tax Disclosure [Abstract] Income Taxes Related Party Transactions [Abstract] Related Party Transactions Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Subsequent Events [Abstract] Subsequent Events Cash and Cash Equivalents Marketable Investment Securities Accounts Receivable Equity-method Investments Inventory Property and Equipment Revenue Recognition Deferred Revenue Research and Development Stock-based Compensation Income Taxes Concentrations Risk and Significant Customers Net Income (Loss) Per Share Recently Issued Accounting Standards Summary of Assets Measured at Fair Value on Recurring Basis Summary of Revenue by Geographic Area Schedule of Deferred Revenue Schedule of Basic and Diluted Earnings Per Share Schedule of Option Activity Schedule of Outstanding Restricted Stock Units and Related Activity Schedule of Warrant Activity Schedule of Recognized Stock-based Compensation Expense Schedule of Future Minimum Lease Payments Statistical Measurement [Axis] Accounts receivable Doubtful accounts Inventory finished goods Inventory raw materials Estimated useful life of property Research and development costs Concentration risk percentage Fair value of assets Revenue Percentage of revenue Deferred revenue, beginning balance Revenue recognized included in deferred revenue balance at the beginning of the period Increase due to prepayments from customers Deferred revenue, ending balance Securities excluded from computation of diluted earnings per share Net income (loss), as reported Weighted average shares, basic Dilutive effect of stock options, warrants and RSUs Shares used to compute diluted earnings per share Basic earnings per share Diluted earnings per share Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Aggregate number of common shares reserved Number of common shares availalble for issuance Intrinsic value of options execised Intrinsic value of options outstanding Number of options Option exercise price Stock-based compensation Recognized share based compensation Unvested option shares outstanding Unrecognized stock-based compensation Unrecognized stock-based compensation recognition period Number of shares issued for services Share-based Payment Arrangement [Abstract] Number of Options Outstanding, Beginning Number of Options Outstanding, Granted Number of Options Outstanding, Expired Number of Options Outstanding, Forfeited/Cancelled Number of Options Outstanding, Exercised Number of Options Outstanding, Ending Number of Options Exercisable Ending Weighted Average Exercise Price Outstanding, Beginning Weighted Average Exercise Price Granted Weighted Average Exercise Price Expired Weighted Average Exercise Price Forfeited/Cancelled Weighted Average Exercise Price Exercised Weighted Average Exercise Price Outstanding, Ending Weighted Average Exercise Price, Exercisable Ending Weighted Average Fair Value Outstanding, Beginning Weighted Average Fair Value Granted Weighted Average Fair Value Expired Weighted Average Fair Value Forfeited/Cancelled Weighted Average Fair Value Exercised Weighted Average Fair Value Outstanding, Ending Weighted Average Fair Value, Exercisable Ending Weighted-average Remaining Contractual Life (years) Outstanding, Ending Weighted-average Remaining Contractual Life (years), Exercisable Ending Number of Restricted Stock Units, Outstanding Beginning Number of Restricted Stock Units, Granted Number of Restricted Stock Units, Vested Number of Restricted Stock Units, Forfeited/Cancelled Number of Restricted Stock Units, Outstanding Ending Weighted Average Grant Date Fair Value, Outstanding Beginning Weighted Average Grant Date Fair Value, Granted Weighted Average Grant Date Fair Value, Vested Weighted Average Grant Date Fair Value, Forfeited/Cancelled Weighted Average Grant Date Fair Value, Outstanding Ending Number of Warrants Outstanding, Beginning Number of Warrants Outstanding, Granted Number of Warrants Outstanding, Forfeited/Cancelled Number of Warrants Outstanding, Exercised Number of Warrants Outstanding, Ending Weighted Average Exercise Price, Beginning Weighted Average Exercise Price, Granted Weighted Average Exercise Price, Forfeited/Cancelled Weighted Average Exercise Price, Exercised Weighted Average Exercise Price, Ending Weighted Average Fair Value, Beginning Weighted Average Fair Value, Granted Weighted Average Fair Value, Forfeited/Cancelled Weighted Average Fair Value, Exercised Weighted Average Fair Value, Ending Weighted-average Remaining Contractual Life (Years) Outstanding, Ending Total stock-based compensation expense Income tax expenses Effective income tax rate effective income tax u.s. federal statutory rate effective income tax rate, valuation allowance Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Accrued royalties Payment for royalties Due to related party Lease term Area of land Payments for rent Lease expiration date Rent expenses 2021 (remainder) 2022 2023 2024 2025 Total lease payments Adjusted to Issuance of Equity [Member] Convertible Preferred Stock [Member] Deferred tax asset, current. Dr. Brent Satterfield [Member] Dr. Satterfield [Member] Exclusive License Agreement [Member] 0.11-0.55 [Member] 2.00-3.85 [Member] 0.11-7.20 [Member] 5.10-7.20 [Member] 15 Warrant Holder [Member] Four Independent Members [Member]. Increase due to prepayments from customers. Two Indivuduals [Member] Institutional Investors [Member] Investment Relations Services [Member] Joint Venture Agreement [Member] Office Equipment, Furniture and Other [Member] Options [Member] Per Month [Member] Proceeds from exercise of options and warrants. Professional Services Agreements [Member] Up to $1,000,000 [Member] $1,000,000-$2,000,000 [Member] Above $3,000,000 [Member] $2,000,000-$3,000,000 [Member] Promissory Note [Member] Rest of World [Member] Restricted Stock Units [Member] Robert Salna Promissory Note Payable [Member] Securities Purchase Agreements [Member] Series A Convertible Preferred Stock [Member] Share-based compensation arrangement by share-based payment award, non-option, exercise in period, weighted average exercise price. Share-based compensation arrangement by share-based payment award, non-option, granted in period, weighted average exercise price. Weighted average price at which grantees can acquire the shares reserved for issuance under the non-option plan. Weighted average price at which grantees can acquire the shares reserved for issuance under the non-option plan. Share-based compensation arrangements by share-based payment award, non-options, exercise in period, weighted average exercise price Weighted average price at which grantees could have acquired the underlying shares with respect to non-options that were terminated. Share-based compensation arrangements by share-based payment award, non-options, grants in period, weighted average exercise price. Share-based compensation arrangement by share-based payment award, non-options, outstanding, weighted average remaining contractual term. Share-based compensation arrangement by share-based payment award, non-option, weighted average exercise price Share-based compensation arrangement by share-based payment award, non-option, forfeitures, weighted average exercise price. Share based compensation arrangement by share based payment award equity instruments other than options exercised weighted average grant date fair value. Shareholder [Member] Stock [Member] Stock Options [Member] Third Parties [Member] Three Companies [Member] Three Customers [Member] Two Companies [Member] Two Customers Each [Member] Two Customers [Member] Two Customers Together [Member] 2015 Long-term Incentive Plan [Member] 2020 [Member] 2021 [Member] Warrant Holder [Member] Three Customers Together [Member] Recognized share based compensation. Investment in joint venture. RestrictedStockUnitsMember Share-based Payment Arrangement, Option [Member] Assets, Current Assets [Default Label] Liabilities, Current Liabilities, Noncurrent Liabilities Stockholders' Equity Attributable to Parent Liabilities and Equity Gross Profit Operating Expenses Operating Income (Loss) Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Gain (Loss) on Sale of Equity Investments Increase (Decrease) in Accounts Receivable Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Inventories Increase (Decrease) in Deferred Income Taxes Increase (Decrease) in Income Taxes Payable Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment PaymentsToAcquireInterestInJointVentures Net Cash Provided by (Used in) Investing Activities Net Cash Provided by (Used in) Financing Activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Shares, Outstanding Shares Issued, Value, Share-based Payment Arrangement, before Forfeiture Revenue from Contract with Customer [Text Block] Inventory, Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Revenue from Contract with Customer, Including Assessed Tax Contract with Customer, Liability Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value Securities Purchase Agreements [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonOutstandingWeightedAverageExercisePrice Shareholder [Member] Lessee, Operating Lease, Liability, to be Paid