STOCK OPTIONS - Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock options
Total compensation expense	$ 413	$ 321	$ 196
Common stock options exercised	$ (448)	63	323
Stock option
Stock options
Shares authorized for issuance	2,200,000
Shares available for issuance	765,325
Common stock options exercised	$ (448)	$ 63	$ 323
Number of Shares
Outstanding at beginning of year (in shares)	1,355,905	1,091,410
Granted (in shares)	45,500	288,495
Exercised (in shares)	(204,670)	(6,400)
Forfeited/expired (in shares)	(6,440)	(17,600)
Outstanding at end of year (in shares)	1,190,295	1,355,905	1,091,410
Exercisable at end of year (in shares)	562,499	543,870
Weighted-Average Exercise Price
Outstanding at beginning of year (in dollars per share)	$ 13.15	$ 12.21
Granted (in dollars per share)	14.80	14.80
Exercised (in dollars per share)	7.31	7.31
Forfeited/expired (in dollars per share)	13.33	13.33
Outstanding at end of year (in dollars per share)	13.15	13.15	$ 12.21
Exercisable at end of year (in dollars per share)	11.82	11.82
Additional disclosure
Weighted-average fair value of options granted during the year (in dollars per share)	$ 2.72	$ 3.05	$ 1.71
Intrinsic value of options exercised	$ 1,600	$ 37	$ 413
Assumptions used to estimate the fair value of the options at the date of grant
Average risk-free interest rates (as a percent)	2.16%	2.65%	2.08%
Weighted average expected life	7 years	7 years	7 years
Expected volatility of the entity's stock price (as a percent)	13.90%	10.23%	6.70%
Expected dividend yield (as a percent)	0.51%	0.50%	0.50%
Stock option | Awards granted in 2005
Stock options
Expiration term	10 years
Awards other than 22,000 granted in 2010 | Stock option | Awards granted in 2006, 2010, 2011, 2012 and 2013
Stock options
Vesting period	5 years
Expiration term	10 years
22,000 shares granted in 2010
Stock options
Vesting period	3 years
Expiration term	10 years
Number of Shares
Granted (in shares)	22,000