Business Combinations - Summary of Estimated Fair Value of Assets and Liabilities Acquired (Detail) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended
Aug. 29, 2014
Dec. 31, 2014
Dec. 15, 2014
Business Acquisition [Line Items]      
Cash and cash equivalents     $ 37,072,000
Assets:      
Cash and cash equivalents     37,072,000
Factored receivables     149,926,000
Premises and equipment, net     8,940,000
Goodwill   28,834,000 5,719,000
Total Assets     233,227,000
Investment securities     25,410,000
Liabilities:      
Total Liabilities     205,637,000
Loans     149,926,000
Net loans     149,926,000
Premises and equipment, net     8,940,000
Core deposit intangible     1,776,000
Bank owned life insurance     2,151,000
Other real estate and repossessions     558,000
Other assets     7,394,000
Total Assets     233,227,000
Non-interest bearing     50,007,000
Interest-bearing     150,539,000
Total Deposits     200,546,000
FHLB advances     4,874,000
Other liabilities     217,000
Total Liabilities     205,637,000
Net identifiable assets acquired over liabilities assumed     27,590,000
Goodwill   28,834,000 5,719,000
Net assets acquired over liabilities assumed     33,309,000
Fair Value Adjustments [Member]      
Assets:      
Factored receivables     (2,246,000)
Premises and equipment, net     648,000
Goodwill     5,719,000
Total Assets     (923,000)
Investment securities     (966,000)
Liabilities:      
Total Liabilities     9,000
Loans     (4,408,000)
Allowance for loan losses     (2,162,000)
Net loans     (2,246,000)
Premises and equipment, net     648,000
Core deposit intangible     1,776,000
Other real estate and repossessions     (260,000)
Other assets     125,000
Total Assets     (923,000)
FHLB advances     9,000
Total Liabilities     9,000
Net identifiable assets acquired over liabilities assumed     (932,000)
Goodwill     5,719,000
Net assets acquired over liabilities assumed     4,787,000
CBI [Member]      
Business Acquisition [Line Items]      
Cash and cash equivalents 2,233,000    
Assets:      
Cash and cash equivalents 2,233,000    
Factored receivables 81,559,000    
Premises and equipment, net 444,000    
Other assets 157,000    
Goodwill 23,115,000 23,115,000  
Total Assets 107,508,000    
Liabilities:      
Other liabilities 6,592,000    
Note payable 77,801,000    
Total Liabilities 84,393,000    
Non controlling interest 6,934,000    
Purchase price 16,181,000 16,181,000  
Net loans 81,559,000    
Premises and equipment, net 444,000    
Total Assets 107,508,000    
Total Liabilities 84,393,000    
Goodwill 23,115,000 23,115,000  
United Group Banking Company of Florida [Member]      
Business Acquisition [Line Items]      
Cash and cash equivalents     37,072,000
Assets:      
Cash and cash equivalents     37,072,000
Factored receivables     152,172,000
Premises and equipment, net     8,292,000
Goodwill   5,719,000 5,719,000
Total Assets     234,150,000
Investment securities     26,376,000
Liabilities:      
Total Liabilities     205,628,000
Loans     154,334,000
Allowance for loan losses     2,162,000
Purchase price     2,950,000
Net loans     152,172,000
Premises and equipment, net     8,292,000
Bank owned life insurance     2,151,000
Other real estate and repossessions     818,000
Other assets     7,269,000
Total Assets     234,150,000
Non-interest bearing     50,007,000
Interest-bearing     150,539,000
Total Deposits     200,546,000
FHLB advances     4,865,000
Other liabilities     217,000
Total Liabilities     205,628,000
Net identifiable assets acquired over liabilities assumed     28,522,000
Goodwill   5,719,000 5,719,000
Net assets acquired over liabilities assumed     28,522,000
Shares of common stock issued     1,617,027
Estimated value per share of the Company's stock     $ 18.72
Fair value of Company stock issued     30,271,000
Cash exchanged for shares and cash in lieu     2,954,000
Value of assumed stock options     84,000
Fair value of total consideration transferred     $ 33,309,000