CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
REVENUE	$ 91,813	$ 89,059	$ 256,510	$ 247,520
COSTS AND EXPENSES:
Educational services and facilities	39,933	38,105	112,234	104,143
Selling, general and administrative	46,984	45,209	139,503	128,159
Loss (gain) on disposition of assets	16	0	(178)	1
Total costs & expenses	86,933	83,314	251,559	232,303
OPERATING INCOME	4,880	5,745	4,951	15,217
OTHER:
Interest expense	(36)	(292)	(114)	(874)
INCOME BEFORE INCOME TAXES	4,844	5,453	4,837	14,343
PROVISION FOR INCOME TAXES	1,300	1,614	761	3,589
NET INCOME	3,544	3,839	4,076	10,754
PREFERRED STOCK DIVIDENDS	304	304	912	912
INCOME AVAILABLE TO COMMON SHAREHOLDERS	$ 3,240	$ 3,535	$ 3,164	$ 9,842
Basic
Net income per common share (in dollars per share)	$ 0.1	$ 0.11	$ 0.1	$ 0.3
Diluted
Net income per common share (in dollars per share)	$ 0.1	$ 0.11	$ 0.1	$ 0.3
Weighted average number of common shares outstanding:
Basic (in shares)	25,381,447	25,135,381	25,692,094	25,043,357
Diluted (in shares)	25,381,447	25,135,381	25,692,094	25,043,357