CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,544	$ 272	$ 3,839	$ 4,489	$ 4,076	$ 10,754
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization					4,618	5,620
Amortization of deferred finance charges					0	136
Deferred income taxes					64	3,636
(Gain) loss on disposition of assets					(178)	1
Fixed asset donations					(245)	(2,050)
Provision for doubtful accounts					24,888	19,816
Stock-based compensation expense					2,367	2,093
(Increase) decrease in assets:
Accounts receivable					(32,467)	(22,122)
Inventories					7	(761)
Prepaid income taxes and income taxes payable					(503)	(729)
Prepaid expenses and current assets					2,550	725
Other assets, net					329	274
Increase (decrease) in liabilities:
Accounts payable					3,800	(186)
Accrued expenses					(5,631)	(914)
Unearned tuition					(2,661)	1,238
Other liabilities					(402)	219
Total adjustments					(3,464)	6,996
Net cash provided by operating activities					612	17,750
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures					(7,053)	(5,252)
Proceeds from sale of property and equipment					2,390	0
Net cash used in investing activities					(4,663)	(5,252)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on borrowings					0	(1,500)
Dividend payment for preferred stock					(912)	(912)
Share repurchase					(6,733)	0
Net share settlement for equity-based compensation					(1,992)	(962)
Net cash used in financing activities					(9,637)	(3,374)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS					(13,688)	9,124
CASH AND CASH EQUIVALENTS-Beginning of period		$ 83,307		$ 38,026	83,307	38,026	$ 38,026
CASH AND CASH EQUIVALENTS-End of period	$ 69,619		$ 47,150		69,619	47,150	$ 83,307
Cash paid for:
Interest					132	795
Income taxes					1,216	681
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Liabilities accrued for or noncash additions of fixed assets					$ 501	$ 2,684