SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Securities sold under agreements to repurchase
Securities sold under agreements to repurchase	$ 26,244,000	$ 11,600,000	$ 36,263,000
Carrying amount of U.S. GSE, mortgage-backed securities and collateralized mortgage obligations that serve as securities under repurchase agreements	29,200,000	16,600,000	40,300,000
Second quarter of 2015
Securities sold under agreements to repurchase
Securities sold under agreements to repurchase	1,200,000
Fourth quarter of 2015
Securities sold under agreements to repurchase
Securities sold under agreements to repurchase	25,000,000
Securities sold under agreement to repurchase
Securities sold under agreements to repurchase
Average daily balance	32,122,000	11,704,000	14,185,000
Average interest rate (as a percent)	1.01%	3.19%	2.71%
Maximum month-end balance	$ 36,230,000	$ 12,045,000	$ 36,879,000
Weighted average interest rate (as a percent)	1.01%	3.14%	2.67%