5. INVESTMENT SECURITIES - Schedule of Securities Amortized Cost and Estimated Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Amortized Cost	$ 72,612	$ 70,702
Gross Unrealized Gains	295	256
Gross Unrealized Losses	897	947
Approximate Fair Value	$ 72,010	70,011
US Government Agencies
Amortized Cost		24,821	$ 24,611
Gross Unrealized Gains		80	77
Gross Unrealized Losses		269	218
Approximate Fair Value		24,632	24,470
Taxable Municipals
Amortized Cost		2,340	2,332
Gross Unrealized Gains		2	3
Gross Unrealized Losses		50	48
Approximate Fair Value		2,292	2,287
Corporate Bonds
Amortized Cost		3,600	3,600
Gross Unrealized Gains		149	189
Gross Unrealized Losses
Approximate Fair Value		3,749	3,789
Mortgage Backed Securities
Amortized Cost		39,941	42,069
Gross Unrealized Gains		25	26
Gross Unrealized Losses		628	631
Approximate Fair Value		$ 39,338	$ 41,464

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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