CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (109)	$ 272
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Depreciation and amortization	1,255	1,528
Deferred income taxes	0	64
Fixed asset donations	(62)	(119)
Provision for credit losses	8,233	7,831
Stock-based compensation expense	812	1,239
(Increase) decrease in assets:
Accounts receivable	(8,663)	(13,379)
Inventories	(18)	81
Prepaid income taxes and income taxes payable	(508)	(796)
Prepaid expenses and current assets	(1,636)	(542)
Other assets, net	924	(31)
Increase (decrease) in liabilities:
Accounts payable	2,387	186
Accrued expenses	353	(6,378)
Unearned tuition	(3,175)	(4,213)
Other liabilities	(7)	(110)
Total adjustments	(105)	(14,639)
Net cash used in operating activities	(214)	(14,367)
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(3,249)	(1,054)
Proceeds from sale of property and equipment	0	9
Net cash used in investing activities	(3,249)	(1,045)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividend payment for preferred stock	0	(304)
Share repurchase	(556)	0
Net share settlement for equity-based compensation	(1,779)	(1,992)
Net cash used in financing activities	(2,335)	(2,296)
NET DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(5,798)	(17,708)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH-Beginning of period	50,287	83,307	$ 83,307
CASH, CASH EQUIVALENTS AND RESTRICTED CASH-End of period	44,489	65,599	$ 50,287
Cash paid for:
Interest	94	104
Income taxes	0	91
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Liabilities accrued for or noncash additions of fixed assets	$ 713	$ 813