CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
REVENUE	$ 263,200	$ 261,853	$ 285,559
COSTS AND EXPENSES:
Educational services and facilities	125,373	129,413	144,426
Selling, general and administrative	141,244	138,779	148,447
Loss (gain) on sale of assets	537	(1,623)	233
Impairment of goodwill and long-lived assets	0	0	21,367
Total costs and expenses	267,154	266,569	314,473
OPERATING LOSS	(3,954)	(4,716)	(28,914)
OTHER:
Interest income	31	56	155
Interest expense	(2,422)	(7,098)	(6,131)
Other income	0	0	6,786
LOSS BEFORE INCOME TAXES	(6,345)	(11,758)	(28,104)
PROVISION (BENEFIT) FOR INCOME TAXES	200	(274)	200
NET LOSS	$ (6,545)	$ (11,484)	$ (28,304)
Basic
Net loss per share (in dollars per share)	$ (0.27)	$ (0.48)	$ (1.21)
Diluted
Net loss per share (in dollars per share)	$ (0.27)	$ (0.48)	$ (1.21)
Weighted average number of common shares outstanding:
Basic (in shares)	24,423,479	23,906,395	23,453,427
Diluted (in shares)	24,423,479	23,906,395	23,453,427