CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 83,307	$ 38,026
Accounts receivable, less allowance of $26,837 and $25,174 at December 31, 2021 and 2020, respectively	26,159	30,021
Inventories	2,721	2,394
Prepaid expenses and other current assets	4,881	3,723
Assets held for sale	4,559	0
Total current assets	121,627	74,164
PROPERTY, EQUIPMENT AND FACILITIES - At cost, net of accumulated depreciation and amortization of $153,335 and $176,300 at December 31, 2021 and 2020, respectively	23,119	48,388
OTHER ASSETS:
Noncurrent receivables, less allowance of $5,084 and $3,465 at December 31, 2021 and 2020, respectively	20,028	16,463
Deferred income taxes, net	23,708	35,718
Operating lease right-of-use assets	91,487	55,187
Goodwill	14,536	14,536
Other assets, net	794	734
Total other assets	150,553	122,638
TOTAL ASSETS	295,299	245,190
CURRENT LIABILITIES:
Current portion of credit agreement	0	2,000
Unearned tuition	25,405	23,453
Accounts payable	12,297	15,676
Accrued expenses	15,669	16,692
Income taxes payable	1,017	491
Current portion of operating lease liabilities	11,479	8,504
Other short-term liabilities	15	26
Total current liabilities	65,882	66,842
NONCURRENT LIABILITIES:
Long-term credit agreement	0	15,212
Pension plan liabilities	1,607	4,252
Long-term portion of operating lease liabilities	86,410	52,702
Other long-term liabilities	0	3,133
Total liabilities	153,899	142,141
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, no par value - authorized 100,000,000 shares at December 31, 2021 and 2020, issued and outstanding 27,000,687 shares at December 31, 2021 and 26,476,329 shares at December 31, 2020	141,377	141,377
Additional paid-in capital	32,439	30,512
Treasury stock at cost - 5,910,541 shares at December 31, 2021 and December 31, 2020	(82,860)	(82,860)
Retained earnings	39,702	6,203
Accumulated other comprehensive loss	(1,240)	(4,165)
Total stockholders' equity	129,418	91,067
TOTAL LIABILITIES, SERIES A CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY	295,299	245,190
Series A Convertible Preferred Stock [Member]
SERIES A CONVERTIBLE PREFERRED STOCK
Preferred stock, no par value - 10,000,000 shares authorized, Series A convertible preferred shares, 12,700 shares issued and outstanding as of each December 31, 2021 and 2020	$ 11,982	$ 11,982