18. PARENT ONLY CONDENSED FINANCIAL STATEMENTS - CONSOLIDATED STATEMENTS OF CASH FLOWS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 4,361	$ 3,057	$ 3,207
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Equity-based compensation expense	166	131	155
(Increase) decrease in other assets	(298)	(1,821)	(128)
Net cash provided by (used in) operating activities	8,983	11,447	11,571
Cash flows from investing activities:
Purchases of equipment	(456)	(130)	(134)
Net cash provided by investing activities	(22,337)	(45,394)	9,345
Cash flows from financing activities:
Cash paid to repurchase common stock	(4,148)	(7,000)	(4,194)
Net cash used in financing activities	17,855	(3,566)	10,777
Net decrease in cash and cash equivalents	4,501	(37,513)	31,693
Cash and cash equivalents at beginning of year	17,948	55,461	23,768
Cash and cash equivalents at end of year	22,449	17,948	55,461
Parent Company [Member]
Cash flows from operating activities:
Net income	4,361	3,057	3,207
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
(Undistributed) distributed earnings of subsidiaries	(453)	2,623	(2,560)
Equity-based compensation expense	166	131	155
(Increase) decrease in other assets	(44)	1,004	(1,209)
Increase (decrease) in other liabilities	80	(60)	110
Net cash provided by (used in) operating activities	4,110	6,755	(297)
Cash flows from investing activities:
Purchases of equipment
Sale of equipment
Net cash provided by investing activities
Cash flows from financing activities:
Cash paid to repurchase common stock	(4,148)	(7,000)	(4,194)
Net cash used in financing activities	(4,148)	(7,000)	(4,194)
Net decrease in cash and cash equivalents	(38)	(245)	(4,491)
Cash and cash equivalents at beginning of year	416	661	5,152
Cash and cash equivalents at end of year	$ 378	$ 416	$ 661