LOANS AND ALLOWANCE FOR LOAN LOSSES - Impaired Loans (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) loan item	Dec. 31, 2014 USD ($) item	Dec. 31, 2013 USD ($)
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	$ 11,137,000	$ 2,799,000
Impaired Loans with Specific Allowance, Related Allowance	1,013,000	690,000
Impaired Loans with No Specific Allowance, Recorded Investment	4,238,000	11,982,000
Total Impaired Loans, Recorded Investment	15,375,000	14,781,000
Total Impaired Loans, Unpaid Principal Balance	$ 16,750,000	15,856,000
Impaired loans, additional information
Number of loans causing change in impaired loans | item	4
Financing Receivable, Principal Curtailment	$ 1,000,000
Financing Receivable, Allowance for Credit Losses, Write-downs	747,000	1,308,000	$ 1,529,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	13,128,000	7,822,000	4,615,000
Interest income recognized on an accrual basis on impaired loans	241,000	297,000	121,000
Interest income recognized on a cash basis on impaired loans	199,000	282,000	157,000
Impaired loans, recorded investment, in process of foreclosure	123,000
Total Recorded Investment in Impaired Financing Receivables [Member] | Credit Concentration Risk [Member]
Impaired loans by class
Total Impaired Loans, Recorded Investment	$ 8,300,000
Impaired loans, additional information
Number of loans causing change in impaired loans | item	2
Concentration Risk, Percentage	54.00%
Total Recorded Investment in Impaired Financing Receivables [Member] | Government Contracts Concentration Risk [Member]
Impaired loans by class
Total Impaired Loans, Recorded Investment	$ 5,000,000
Impaired loans, additional information
Number of loans causing change in impaired loans | item	1
Commercial
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	$ 9,961,000	1,800,000
Impaired Loans with Specific Allowance, Related Allowance	708,000	362,000
Impaired Loans with No Specific Allowance, Recorded Investment	4,216,000	11,982,000
Total Impaired Loans, Recorded Investment	14,177,000	13,782,000
Total Impaired Loans, Unpaid Principal Balance	15,552,000	14,857,000
Impaired loans, additional information
Financing Receivable, Allowance for Credit Losses, Write-downs	708,000	1,110,000	1,458,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	12,179,000	6,970,000	4,238,000
Interest income recognized on an accrual basis on impaired loans	228,000	275,000	112,000
Interest income recognized on a cash basis on impaired loans	185,000	260,000	149,000
Impaired loans, recorded investment, in process of foreclosure	249,000
Commercial Business
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	574,000
Impaired Loans with Specific Allowance, Related Allowance	4,000
Impaired Loans with No Specific Allowance, Recorded Investment	3,260,000	3,606,000
Total Impaired Loans, Recorded Investment	3,834,000	3,606,000
Total Impaired Loans, Unpaid Principal Balance	3,834,000	3,606,000
Impaired loans, additional information
Proceeds from Collection of Loans Receivable	848,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	3,153,000	301,000
Interest income recognized on an accrual basis on impaired loans	156,000	14,000
Interest income recognized on a cash basis on impaired loans	114,000	61,000
Commercial Real Estate
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	7,587,000	1,527,000
Impaired Loans with Specific Allowance, Related Allowance	513,000	260,000
Impaired Loans with No Specific Allowance, Recorded Investment		5,021,000
Total Impaired Loans, Recorded Investment	7,587,000	6,548,000
Total Impaired Loans, Unpaid Principal Balance	7,587,000	6,548,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	6,618,000	2,213,000	1,878,000
Interest income recognized on an accrual basis on impaired loans	63,000	149,000	38,000
Interest income recognized on a cash basis on impaired loans	61,000	105,000	58,000
Four Loans Commercial Real Estate [Member]
Impaired loans by class
Total Impaired Loans, Recorded Investment	1,100,000
Acquisition & Development
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	1,800,000	273,000
Impaired Loans with Specific Allowance, Related Allowance	191,000	102,000
Impaired Loans with No Specific Allowance, Recorded Investment	956,000	3,355,000
Total Impaired Loans, Recorded Investment	2,756,000	3,628,000
Total Impaired Loans, Unpaid Principal Balance	4,131,000	4,703,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	2,408,000	4,456,000	2,360,000
Interest income recognized on an accrual basis on impaired loans	9,000	112,000	74,000
Interest income recognized on a cash basis on impaired loans	10,000	94,000	91,000
Two Unrelated Acquisition and Development Loans [Member]
Impaired loans by class
Total Impaired Loans, Recorded Investment	2,200,000	$ 3,100,000
Impaired loans, additional information
Number of loans causing change in impaired loans | item		2
Financing Receivable, Principal Curtailment		$ 268,000
Financing Receivable, Allowance for Credit Losses, Write-downs		600,000
Residential
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	1,045,000	969,000
Impaired Loans with Specific Allowance, Related Allowance	276,000	298,000
Impaired Loans with No Specific Allowance, Recorded Investment	22,000
Total Impaired Loans, Recorded Investment	1,067,000	969,000
Total Impaired Loans, Unpaid Principal Balance	1,067,000	969,000
Impaired loans, additional information
Financing Receivable, Allowance for Credit Losses, Write-downs	$ 28,000	130,000	38,000
Concentration Risk, Percentage	66.00%
Number of impaired loans, increase related | loan	2
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	$ 920,000	804,000	356,000
Interest income recognized on an accrual basis on impaired loans	12,000	20,000	7,000
Interest income recognized on a cash basis on impaired loans	$ 13,000	20,000	6,000
Number of loans, in process of foreclosure | item	3
Impaired loans, recorded investment, in process of foreclosure	$ 157,000.000
Home Equity
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	28,000	28,000
Impaired Loans with Specific Allowance, Related Allowance	28,000	28,000
Total Impaired Loans, Recorded Investment	28,000	28,000
Total Impaired Loans, Unpaid Principal Balance	28,000	28,000
Impaired loans, additional information
Financing Receivable, Allowance for Credit Losses, Write-downs	5,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	28,000	28,000	2,000
Interest income recognized on an accrual basis on impaired loans	1,000	1,000	1,000
Interest income recognized on a cash basis on impaired loans	1,000	1,000
Consumer
Impaired loans by class
Impaired Loans with Specific Allowance, Recorded Investment	103,000	2,000
Impaired Loans with Specific Allowance, Related Allowance	1,000	2,000
Total Impaired Loans, Recorded Investment	103,000	2,000
Total Impaired Loans, Unpaid Principal Balance	103,000	2,000
Impaired loans, additional information
Financing Receivable, Allowance for Credit Losses, Write-downs	6,000	68,000	33,000
Average recorded investment in impaired loans and related interest income recognized
Average investment in impaired loans	1,000	20,000	19,000
Interest income recognized on an accrual basis on impaired loans		1,000	1,000
Interest income recognized on a cash basis on impaired loans		$ 1,000	$ 2,000
One Loan [Member]
Impaired loans, additional information
Recorded investment on imparied loans	3,300,000
Unimpaired Loan Recorded Investment	$ 500,000