CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
REVENUE	$ 78,792	$ 72,594	$ 211,303	$ 199,427
COSTS AND EXPENSES:
Educational services and facilities	34,251	33,211	90,733	92,940
Selling, general and administrative	40,700	37,451	117,011	111,512
Loss (gain) on disposition of assets	1	(211)	(96)	(211)
Total costs & expenses	74,952	70,451	207,648	204,241
OPERATING INCOME (LOSS)	3,840	2,143	3,655	(4,814)
OTHER:
Interest income	0	1	0	7
Interest expense	(278)	(754)	(960)	(2,141)
INCOME (LOSS) BEFORE INCOME TAXES	3,562	1,390	2,695	(6,948)
PROVISION FOR INCOME TAXES	50	50	150	244
NET INCOME (LOSS)	3,512	1,340	2,545	(7,192)
PREFERRED STOCK DIVIDENDS	1,074	0	1,074	0
INCOME (LOSS) AVAILABLE TO COMMON SHAREHOLDERS	$ 2,438	$ 1,340	$ 1,471	$ (7,192)
Basic
Net income (loss) per common share (in dollars per share)	$ 0.08	$ 0.05	$ 0.05	$ (0.29)
Diluted
Net income (loss) per common share (in dollars per share)	$ 0.08	$ 0.05	$ 0.05	$ (0.29)
Weighted average number of common shares outstanding:
Basic (in shares)	24,821,665	24,563,038	24,720,817	24,550,999
Diluted (in shares)	24,821,665	24,607,504	24,720,817	24,550,999