EQUITY-BASED COMPENSATION - Time-Based Restricted Stock Awards (Details 3) - Restricted Stock Awards - Time-Based - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Apr. 24, 2015	Mar. 03, 2015	May. 28, 2014	Mar. 01, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Number of Shares
Non-vested at the beginning of year (in shares)					181,116	161,587
Granted (in shares)					166,340	116,981
Vested (in shares)					(97,445)	(95,696)
Forfeited (in shares)						(1,756)
Non-vested at end of year (in shares)					250,011	181,116	161,587
Weighted Average Grant Date Fair Value
Non-vested at beginning of year (in dollars per share)					$ 9.81	$ 9.10
Granted (in dollars per share)					13.53	9.82
Vested (in dollars per share)					10.46	8.63
Forfeited (in dollars per share)						9.82
Non-vested at end of year (in dollars per share)					$ 12.03	$ 9.81	$ 9.10
Aggregate Current Value
Non-vested outstanding					$ 2,988
Total fair value of awards vested					$ 1,000	$ 800	$ 200
Executive officers and management
Equity-based compensation
Vesting period		3 years	3 years
Number of Shares
Granted (in shares)		149,410	116,981
Executive officers and management | Continued service on March 9, 2018, or upon a change in control
Number of Shares
Granted (in shares)		37,230
Executive officers and management | Period one
Equity-based compensation
Vesting percentage		25.00%	25.00%	25.00%
Executive officers and management | Period two
Equity-based compensation
Vesting percentage		25.00%	25.00%	25.00%
Executive officers and management | Period three
Equity-based compensation
Vesting percentage		50.00%	50.00%	50.00%
Executive officers
Equity-based compensation
Vesting period	3 years			3 years
Number of Shares
Granted (in shares)	16,930			106,518