QUARTERLY RESULTS OF OPERATIONS (Details) - USD ($) $ / shares in Units, $ 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
Quarterly Results of Operations [Abstract]
Interest income	$ 10,345	$ 10,181	$ 10,010	$ 9,964	$ 9,891	$ 9,717	$ 10,045	$ 9,811	$ 40,500	$ 39,464	$ 37,526
Interest expense	1,001	996	980	957	940	959	989	970	3,934	3,858	3,646
Net interest income	9,344	9,185	9,030	9,007	8,951	8,758	9,056	8,841	36,566	35,606	33,880
Provision for loan losses	0	0	0	0	0	0	0	0	0	0	150
Net interest income after provision for loan losses	9,344	9,185	9,030	9,007	8,951	8,758	9,056	8,841	36,566	35,606	33,730
Net gains on sales of securities	26	0	0	0	2	158	101	0	26	261	62
Gain on sales of premises and equipment	0	0	449	0					449	0	0
Other income	3,198	3,301	3,362	2,872	3,082	3,132	3,138	2,793
Proposed merger expenses	472	0	0	0					472	0	0
Other expenses and provision for income taxes	9,524	9,718	9,859	9,332	9,183	9,236	9,485	9,091
NET INCOME	$ 2,572	$ 2,768	$ 2,982	$ 2,547	$ 2,852	$ 2,812	$ 2,810	$ 2,543	$ 10,869	$ 11,017	$ 10,290
Basic earnings per share	$ 0.43	$ 0.46	$ 0.49	$ 0.42	$ 0.47	$ 0.47	$ 0.47	$ 0.42	$ 1.80	$ 1.83	$ 1.71
Dividends per share	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.80	$ 0.80	$ 0.77