INCOME TAXES, PROVISION FOR FEDERAL INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Provision for federal income taxes [Abstract]
Income taxes currently payable									$ 4,280	$ 3,194	$ 2,750
Deferred income tax provision (benefit)									(58)	192	192
Provision for income taxes	$ 1,013	$ 922	$ 1,205	$ 1,082	$ 1,228	$ 953	$ 841	$ 364	$ 4,222	$ 3,386	$ 2,942