CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
REVENUE	$ 82,142	$ 80,464	$ 164,697	$ 158,461
COSTS AND EXPENSES:
Educational services and facilities	36,106	33,694	72,302	66,037
Selling, general and administrative	45,835	43,318	92,520	82,951
(Gain) loss on disposition of assets	(195)	0	(195)	1
Total costs & expenses	81,746	77,012	164,627	148,989
OPERATING INCOME	396	3,452	70	9,472
OTHER:
Interest expense	(35)	(297)	(77)	(582)
INCOME (LOSS) BEFORE INCOME TAXES	361	3,155	(7)	8,890
PROVISION (BENEFIT) FOR INCOME TAXES	102	729	(539)	1,975
NET INCOME	259	2,426	532	6,915
PREFERRED STOCK DIVIDENDS	304	304	608	608
(LOSS) INCOME AVAILABLE TO COMMON SHAREHOLDERS	$ (45)	$ 2,122	$ (76)	$ 6,307
Basic
Net (loss) income per common share (in dollars per share)	$ 0.00	$ 0.06	$ 0.00	$ 0.19
Diluted
Net (loss) income per common share (in dollars per share)	$ 0.00	$ 0.06	$ 0.00	$ 0.19
Weighted average number of common shares outstanding:
Basic (in shares)	25,962,617	25,105,238	25,842,456	24,996,583
Diluted (in shares)	25,962,617	25,105,238	25,842,456	24,996,583