LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired Loans by Loan Class (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
With no related allowance recorded:    
Recorded Investment $ 17,270 $ 8,863
Unpaid Principal Balance 17,469 9,252
With an allowance recorded:    
Recorded Investment 3,687 2,738
Unpaid Principal Balance 3,907 2,738
Related Allowance 1,654 859
Total:    
Recorded Investment 20,957 11,601
Unpaid Principal Balance 21,376 11,990
Related Allowance 1,654 859
Commercial and industrial    
With no related allowance recorded:    
Recorded Investment 5,300 3,842
Unpaid Principal Balance 5,414 4,216
With an allowance recorded:    
Recorded Investment 3,108 1,573
Unpaid Principal Balance 3,328 1,573
Related Allowance 1,543 670
Total:    
Recorded Investment 8,408 5,415
Unpaid Principal Balance 8,742 5,789
Related Allowance 1,543 670
Mortgage warehouse    
With no related allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
With an allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Total:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Real estate | Commercial real estate (including multi-family residential)    
With no related allowance recorded:    
Recorded Investment 11,748 4,700
Unpaid Principal Balance 11,833 4,700
With an allowance recorded:    
Recorded Investment 573 1,146
Unpaid Principal Balance 573 1,146
Related Allowance 105 180
Total:    
Recorded Investment 12,321 5,846
Unpaid Principal Balance 12,406 5,846
Related Allowance 105 180
Real estate | Commercial real estate construction and land development    
With no related allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
With an allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Total:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Real estate | 1-4 Family residential including home equity    
With no related allowance recorded:    
Recorded Investment 217 239
Unpaid Principal Balance 217 239
With an allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Total:    
Recorded Investment 217 239
Unpaid Principal Balance 217 239
Related Allowance 0 0
Real estate | Residential construction    
With no related allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
With an allowance recorded:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Total:    
Recorded Investment 0 0
Unpaid Principal Balance 0 0
Related Allowance 0 0
Consumer and other    
With no related allowance recorded:    
Recorded Investment 5 82
Unpaid Principal Balance 5 97
With an allowance recorded:    
Recorded Investment 6 19
Unpaid Principal Balance 6 19
Related Allowance 6 9
Total:    
Recorded Investment 11 101
Unpaid Principal Balance 11 116
Related Allowance $ 6 $ 9