UNAUDITED QUARTERLY FINANCIAL INFORMATION (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
UNAUDITED QUARTERLY FINANCIAL INFORMATION [Abstract]
Revenue	$ 50,348	$ 52,877	$ 46,263	$ 47,423	$ 52,552	$ 55,752	$ 48,607	$ 51,345	$ 196,910	$ 208,256	$ 218,040
(Loss) income from continuing operations	84	1,697	(1,642)	(4,638)	3,878	5,217	(4,169)	(4,786)	(4,498)	141	(25,549)
(Loss) income from discontinued operations	(18,711)	(2,168)	(1,496)	(1,430)	4,679	(2,636)	(3,436)	(2,097)	(23,806)	(3,491)	(30,584)
Net (loss) income	$ (18,627)	$ (471)	$ (3,138)	$ (6,068)	$ 8,557	$ 2,581	$ (7,605)	$ (6,883)	$ (28,304)	$ (3,350)	$ (56,133)
Basic [Abstract]
(Loss) earnings per share from continuing operations (in dollars per share)	$ 0	$ 0.07	$ (0.07)	$ (0.20)	$ 0.17	$ 0.22	$ (0.18)	$ (0.21)	$ (0.19)	$ 0.01	$ (1.12)
(Loss) earnings per share from discontinued operations (in dollars per share)	(0.79)	(0.09)	(0.06)	(0.06)	0.20	(0.11)	(0.15)	(0.09)	(1.02)	(0.15)	(1.34)
Net loss per share (in dollars per share)	(0.79)	(0.02)	(0.13)	(0.26)	0.37	0.11	(0.33)	(0.30)	(1.21)	(0.14)	(2.46)
Diluted [Abstract]
(Loss) earnings per share from continuing operations (in dollars per share)	0	0.07	(0.07)	(0.20)	0.17	0.22	(0.18)	(0.21)	(0.19)	0.01	(1.12)
(Loss) earnings per share from discontinued operations (in dollars per share)	(0.76)	(0.09)	(0.06)	(0.06)	0.20	(0.11)	(0.15)	(0.09)	(1.02)	(0.15)	(1.34)
Net loss income per share (in dollars per share)	$ (0.76)	$ (0.02)	$ (0.13)	$ (0.26)	$ 0.37	$ 0.11	$ (0.33)	$ (0.30)	$ (1.21)	$ (0.14)	$ (2.46)
Weighted average number of common shares outstanding:
Basic (in shares)	23,514,000	23,499,000	23,448,000	23,351,000	23,247,000	23,230,000	23,132,000	23,056,000	23,453,427	23,166,977	22,814,105
Diluted (in shares)	24,602,000	24,680,000	23,448,000	23,351,000	23,347,000	23,270,000	23,132,000	23,056,000	23,453,427	23,227,138	22,814,105