EMPLOYEE BENEFIT PLANS - Restricted Stock and Additional Disclosures (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Number of Shares
Outstanding at beginning of year (in shares)	44,866
Outstanding at end of period (in shares)	46,449	44,866
Stock Options
Additional Disclosures
Unrecognized share-based compensation expense related to non-vested options (in dollars)	$ 309,000
Weighted average period for recognition of share-based compensation	3 years 1 month 6 days
Share-based compensation expense recognized (in dollars)	$ 124,000	$ 90,000
Tax benefit from recognized compensation expense (in dollars)	$ 16,000	$ 12,000
Restricted stock award
Number of Shares
Outstanding at beginning of year (in shares)	44,866	37,071
Granted (in shares)	16,500	20,000
Vested (in shares)	(14,917)	(12,205)
Outstanding at end of period (in shares)	46,449	44,866
Weighted Average Grant Date Value
Outstanding at beginning of year (in dollars per share)	$ 15.21	$ 12.85
Granted (in dollars per share)	19.40	17.55
Vested (in dollars per share)	14.27	11.89
Outstanding at end of period (in dollars per share)	$ 17.00	$ 15.21
Additional Disclosures
Unrecognized share-based compensation expense related to non-vested restricted stock (in dollars)	$ 574,000
Weighted average period for recognition of share-based compensation	3 years
Share-based compensation expense recognized (in dollars)	$ 257,000	$ 209,000
Tax benefit from recognized compensation expense (in dollars)	$ 103,000	$ 84,000