ACCOUNTING POLICIES (Details 5) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings per share
Consolidated net income	$ 110	$ (2,071)	$ 1,668	$ 2,739	$ 1,358	$ 1,617	$ 1,909	$ 3,970	$ 2,446	$ 8,854	$ 84,378
Net income per common share—basic:
Net income attributable to common shares-basic (in dollars per share)	$ 0.00	$ (0.08)	$ 0.07	$ 0.11	$ 0.06	$ 0.07	$ 0.08	$ 0.17	$ 0.10	$ 0.37	$ 3.56
Weighted average common shares outstanding—basic	25,234	24,681	24,306	24,213	24,031	24,027	24,009	23,926	24,612	23,999	23,714
Effect of dilutive securities:
Stock options and restricted stock awards (in shares)									91	318	580
Weighted average common shares outstanding—diluted	25,266	24,681	24,398	24,390	24,399	24,283	24,247	24,339	24,703	24,317	24,294
Net income attributable to common shares-diluted (in dollars per share)	$ 0.00	$ (0.08)	$ 0.07	$ 0.11	$ 0.06	$ 0.07	$ 0.08	$ 0.16	$ 0.10	$ 0.36	$ 3.47
Stock options and restricted stock awards
Anti-dilutive securities excluded from computation of earnings per share
Stock options and restricted stock units (in shares)									323	291	154