CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 68,554	$ 75,992
Restricted cash	1,221	4,277
Accounts receivable, less allowance for credit losses of $37,128 and $34,441 at March 31, 2024 and December 31, 2023, respectively	40,484	35,692
Inventories	2,419	2,948
Prepaid expenses and other current assets	6,071	5,556
Assets held for sale	0	10,198
Total current assets	118,749	134,663
PROPERTY, EQUIPMENT AND FACILITIES - At cost, net of accumulated depreciation and amortization of $141,696 and $140,161 at March 31, 2024 and December 31, 2023, respectively	52,005	50,857
OTHER ASSETS:
Noncurrent receivables, less allowance for credit losses of $19,211 and $19,370 at March 31, 2024 and December 31, 2023, respectively	17,360	17,504
Deferred finance charges	420	0
Deferred income taxes, net	22,796	23,217
Operating lease right-of-use assets	102,797	89,923
Finance lease right-of-use assets	27,998	15,797
Goodwill	10,742	10,742
Other assets, net	1,443	1,787
Pension plan assets, net	853	759
Total other assets	184,409	159,729
TOTAL ASSETS	355,163	345,249
CURRENT LIABILITIES:
Unearned tuition	22,265	26,906
Accounts payable	14,282	18,152
Accrued expenses	9,206	13,713
Income taxes payable	2,287	2,832
Current portion of operating lease liabilities	11,842	11,737
Current portion of finance lease liabilities	0	70
Total current liabilities	59,882	73,410
NONCURRENT LIABILITIES:
Long-term portion of operating lease liabilities	101,927	88,853
Long-term portion of finance lease liabilities	28,809	16,126
Other long-term liabilities	52	56
Total liabilities	190,670	178,445
STOCKHOLDERS' EQUITY:
Common stock, no par value - authorized 100,000,000 shares at March 31, 2024 and December 31, 2023, issued and outstanding 31,443,711 shares at March 31, 2024 and issued and outstanding 31,443,711 shares at March 31, 2024 and 31,359,110 shares at December 31, 2023.	48,181	48,181
Additional paid-in capital	47,283	49,380
Retained earnings	69,065	69,279
Accumulated other comprehensive loss	(36)	(36)
Total stockholders' equity	164,493	166,804
TOTAL LIABILITIES, SERIES A CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY	$ 355,163	$ 345,249