PARENT COMPANY FINANCIAL STATEMENTS - INCOME AND COMPREHENSIVE INCOME (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Expenses
Interest expense									$ 4,426	$ 4,050	$ 3,756
Other expenses									33,785	31,807	27,215
Income before income taxes and equity in undistributed income of subsidiary									9,342	7,362	7,968
Applicable income tax benefits									(773)	(530)	(897)
Net income	$ 2,285	$ 2,365	$ 2,082	$ 1,837	$ 1,654	$ 1,541	$ 2,122	$ 1,515	8,569	6,832	7,071
Other comprehensive income (loss), net of tax:
Other comprehensive income (loss)									(1,315)	(432)	5,917
Comprehensive income									7,254	6,400	12,988
Parent Company
Income
Dividends from subsidiary									5,700	4,200	4,100
Total income									5,700	4,200	4,100
Expenses
Interest expense									482	347	230
Other expenses									209	644	385
Total expenses									691	991	615
Income before income taxes and equity in undistributed income of subsidiary									5,009	3,209	3,485
Applicable income tax benefits									235	269	209
Income before equity in undistributed income of subsidiary									5,244	3,478	3,694
Equity in undistributed income of subsidiaries									3,325	3,354	3,377
Net income									8,569	6,832	7,071
Other comprehensive income (loss), net of tax:
Unrealized holding gains (losses) for the period, net of tax									(1,126)	(160)	6,555
Reclassification of realized amount									(189)	(272)	(638)
Other comprehensive income (loss)									(1,315)	(432)	5,917
Comprehensive income									$ 7,254	$ 6,400	$ 12,988