18. PARENT ONLY CONDENSED FINANCIAL STATEMENTS - CONDENSED BALANCE SHEETS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks	$ 38,467	$ 27,589
Total Assets	655,622	651,450
Liabilities:
Other liabilities	7,121	7,294
Total liabilities	578,701	567,600
Shareholders' equity:
Common stock	34,463	42,484
Retained earnings	42,779	40,822
Accumulated other comprehensive income, net of taxes	(321)	544
Total shareholders' equity	76,921	83,850	$ 86,075	$ 89,647
Total liabilities and shareholders' equity	655,622	651,450
Parent Company [Member]
ASSETS
Cash and due from banks	1,605	259
Investment in subsidiaries	76,040	84,234
Other assets	264	347
Total Assets	77,909	84,840
Liabilities:
Other liabilities	988	990
Total liabilities	988	990
Shareholders' equity:
Common stock	34,463	42,484
Retained earnings	42,779	40,822
Accumulated other comprehensive income, net of taxes	(321)	544
Total shareholders' equity	76,921	83,850
Total liabilities and shareholders' equity	$ 77,909	$ 84,840