LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired Loans (Details) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($) item loan	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	$ 6,461		$ 11,137
Impaired Loans with Specific Allowance, Related Allowance	1,369		1,013
Impaired Loans with No Specific Allowance, Recorded Investment	5,965		4,238
Total Impaired Loans, Recorded Investment	12,426		15,375
Total Impaired Loans, Unpaid Principal Balance	13,973		16,750
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	14,386	$ 14,560
Interest income recognized on an accrual basis on impaired loans	74	142
Interest income recognized on a cash basis on impaired loans	57	43
Impaired loans, recorded investment, in process of foreclosure	$ 132
Total Recorded Investment in Impaired Financing Receivables [Member] \| Credit Concentration Risk [Member]
Impaired loans, additional information
Number of loans causing change in impaired loans \| item	2
Impaired loans outstanding balance, decrease	$ 2,900
Concentration Risk, Percentage	19.00%
Total Recorded Investment in Impaired Financing Receivables [Member] \| Government Contracts Concentration Risk [Member]
Impaired loans by class
Total Impaired Loans, Recorded Investment	$ 5,000
Commercial
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	5,323		9,961
Impaired Loans with Specific Allowance, Related Allowance	946		708
Impaired Loans with No Specific Allowance, Recorded Investment	5,651		4,216
Total Impaired Loans, Recorded Investment	10,974		14,177
Total Impaired Loans, Unpaid Principal Balance	12,451		15,552
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	13,101	13,580
Interest income recognized on an accrual basis on impaired loans	69	137
Interest income recognized on a cash basis on impaired loans	54	41
Impaired loans, recorded investment, in process of foreclosure	790
Commercial Business
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	679		574
Impaired Loans with Specific Allowance, Related Allowance	107		4
Impaired Loans with No Specific Allowance, Recorded Investment	3,266		3,260
Total Impaired Loans, Recorded Investment	3,945		3,834
Total Impaired Loans, Unpaid Principal Balance	3,945		3,834
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	3,838	3,511
Interest income recognized on an accrual basis on impaired loans	39	39
Interest income recognized on a cash basis on impaired loans	26	36
Commercial Real Estate
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	4,377		7,587
Impaired Loans with Specific Allowance, Related Allowance	754		513
Total Impaired Loans, Recorded Investment	4,377		7,587
Total Impaired Loans, Unpaid Principal Balance	4,377		7,587
Impaired loans, additional information
Repurchased by selling financial institution	5,000
Impaired loans, due to extended stabilization and interest only period, as well as lack of project specific cash flows	1,800
Impaired loans, participation	651
Impaired loans decrease, significant net effect	3,200
Impaired loans decrease, other factors net effect	400
Impaired loans, partial charge-off and loan amortization	167
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	6,541	6,542
Interest income recognized on an accrual basis on impaired loans	28	13
Interest income recognized on a cash basis on impaired loans	25	4
Acquisition & Development
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	267		1,800
Impaired Loans with Specific Allowance, Related Allowance	85		191
Impaired Loans with No Specific Allowance, Recorded Investment	2,385		956
Total Impaired Loans, Recorded Investment	2,652		2,756
Total Impaired Loans, Unpaid Principal Balance	4,129		4,131
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	2,722	3,527
Interest income recognized on an accrual basis on impaired loans	2	85
Interest income recognized on a cash basis on impaired loans	3	1
Residential
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	865		1,045
Impaired Loans with Specific Allowance, Related Allowance	212		276
Impaired Loans with No Specific Allowance, Recorded Investment	184		22
Total Impaired Loans, Recorded Investment	1,049		1,067
Total Impaired Loans, Unpaid Principal Balance	$ 1,116		1,067
Impaired loans, additional information
Concentration Risk, Percentage	64.00%
Number of impaired loans, increase related \| loan	6
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	$ 1,059	950
Interest income recognized on an accrual basis on impaired loans	5	5
Interest income recognized on a cash basis on impaired loans	$ 3	2
Number of loans, in process of foreclosure \| item	3
Impaired loans, recorded investment, in process of foreclosure	$ 144
Home Equity
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment			28
Impaired Loans with Specific Allowance, Related Allowance			28
Impaired Loans with No Specific Allowance, Recorded Investment	28
Total Impaired Loans, Recorded Investment	28		28
Total Impaired Loans, Unpaid Principal Balance	28		28
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	28	28
Consumer
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	273		103
Impaired Loans with Specific Allowance, Related Allowance	211		1
Impaired Loans with No Specific Allowance, Recorded Investment	102
Total Impaired Loans, Recorded Investment	375		103
Total Impaired Loans, Unpaid Principal Balance	378		$ 103
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	$ 198	$ 2

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The number of loans responsible for the increase or decrease in impaired loans during the period.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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Amount of allowance for credit losses related to recorded investment.

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