EMPLOYEE STOCK PLANS - Summary of Activity (Details) - Employee stock option - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Options
Outstanding, beginning of period (in shares)	358,073	432,642	307,845
Granted (in shares)	5,000	17,500	131,280
Exercised (in shares)	(7,655)	(49,560)	(6,155)
Forfeited or expired (in shares)	(16,042)	(42,509)	(328)
Outstanding, end of period (in shares)	339,376	358,073	432,642
Exercisable (in shares)	162,679	109,691	70,457
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 14.28	$ 14.13	$ 13.36
Granted (in dollars per share)	13.17	18.99	15.82
Exercised (in dollars per share)	12.97	12.97	11.10
Forfeited or expired (in dollars per share)	17.73	16.24	20.88
Outstanding, end of period (in dollars per share)	14.13	14.28	14.13
Exercisable (in dollars per share)	$ 13.81	$ 13.98	$ 14.81
Weighted Average Remaining Contractual Term
Outstanding	6 years 358 days
Exercisable	6 years 288 days
Aggregate Intrinsic Value
Outstanding	$ 0
Exercisable	$ 0