PARENT COMPANY FINANCIAL INFORMATION - CONDENSED STATEMENTS OF 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
Income:
Interest and dividends	$ 11,226	$ 10,895	$ 11,008	$ 10,621	$ 10,812	$ 10,409	$ 11,348	$ 10,090	$ 43,750	$ 42,659	$ 39,477
INCOME BEFORE INCOME TAXES	4,991	3,891	4,011	4,032	3,897	3,555	4,328	3,916	16,925	15,696	13,255
Income tax benefit	(1,337)	(995)	(1,043)	(1,068)	(1,013)	(922)	(1,205)	(1,082)	(4,443)	(4,222)	(3,386)
NET INCOME	$ 3,654	$ 2,896	$ 2,968	$ 2,964	$ 2,884	$ 2,633	$ 3,123	$ 2,834	12,482	11,474	9,869
Parent Company
Income:
Dividends from subsidiary									7,300	5,400	8,800
Interest and dividends									38	58	91
Net gain on sales of securities									8	254	10
Total income									7,346	5,712	8,901
Total expenses									1,014	1,016	1,077
INCOME BEFORE INCOME TAXES									6,332	4,696	7,824
Income tax benefit									336	250	350
Equity in undistributed income of subsidiary									5,814	6,528	1,695
NET INCOME									$ 12,482	$ 11,474	$ 9,869