5. INVESTMENT SECURITIES - Schedule of Fair Value and Gross Unrealized Losses on Investment Securities In A Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Less than 12 Months	$ 43,915	$ 42,822
Unrealized Losses, Less than 12 Months	793	843
Fair Value, 12 Months or More	7,656	7,104
Unrealized Losses, 12 Months or More	104	104
Fair Value, Total	51,571	49,926
Unrealized Losses, Total	897	947
US Government Agencies
Fair Value, Less than 12 Months	12,661	12,081
Unrealized Losses, Less than 12 Months	204	250
Fair Value, 12 Months or More	2,461	2,449
Unrealized Losses, 12 Months or More	14	19
Fair Value, Total	15,122	14,530
Unrealized Losses, Total	218	269
Taxable Municipals
Fair Value, Less than 12 Months	1,559	1,561
Unrealized Losses, Less than 12 Months	48	50
Fair Value, Total	1,559	1,561
Unrealized Losses, Total	48	50
Corporate Bonds
Fair Value, Less than 12 Months		500
Fair Value, Total		500
Mortgage Backed Securities
Fair Value, Less than 12 Months	29,695	28,680
Unrealized Losses, Less than 12 Months	541	543
Fair Value, 12 Months or More	5,195	4,655
Unrealized Losses, 12 Months or More	90	85
Fair Value, Total	34,890	33,335
Unrealized Losses, Total	$ 631	$ 628