SEGMENT REPORTING (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) Segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
SEGMENT REPORTING [Abstract]
Number of reportable operating segments | Segment	2
Summary financial information by reporting segment [Abstract]
REVENUE	$ 440,064	$ 378,070	$ 348,287
COSTS AND EXPENSES:
Instructional	90,566	85,311	79,021
Books and Tools	32,146	26,177	23,623
Facilities	46,791	44,647	40,327
Depreciation	12,256	6,140	5,775
Educational services and facilities	181,759	162,275	148,746
Sales and marketing	75,236	65,553	61,241
Student services	21,874	18,693	16,077
Bad debt expense	56,578	41,637	34,915
Administrative	89,415	82,622	69,571
Depreciation	700	630	587
Selling, general and administrative	243,803	209,135	182,391
Loss (gain) on sale of assets	2,119	(30,918)	(177)
Gain on insurance proceeds	(2,794)	0	0
Impairment of goodwill and long-lived assets	0	4,220	1,049
Total costs and expenses	424,887	344,712	332,009
OPERATING INCOME	15,177	33,358	16,278
Campus Operations [Member]
Summary financial information by reporting segment [Abstract]
REVENUE	432,966	367,233	330,896
Reportable Segments [Member] | Campus Operations [Member]
Summary financial information by reporting segment [Abstract]
REVENUE	432,966	367,233	330,896
COSTS AND EXPENSES:
Instructional	88,207	82,228	75,274
Books and Tools	31,161	24,802	21,642
Facilities	45,842	42,475	38,071
Depreciation	12,200	6,030	5,669
Educational services and facilities	177,410	155,535	140,656
Sales and marketing	73,532	64,159	58,561
Student services	21,012	17,314	15,004
Bad debt expense	55,600	39,978	32,731
Administrative	41,235	37,976	35,068
Depreciation	0	0	0
Selling, general and administrative	191,379	159,427	141,364
Loss (gain) on sale of assets	619	20	28
Gain on insurance proceeds	0	0	0
Impairment of goodwill and long-lived assets	0	4,220	1,049
Total costs and expenses	369,408	319,202	283,097
OPERATING INCOME	63,558	48,031	47,799
Reportable Segments [Member] | Transitional [Member]
Summary financial information by reporting segment [Abstract]
REVENUE	7,098	10,837	17,391
COSTS AND EXPENSES:
Instructional	2,359	3,083	3,747
Books and Tools	985	1,375	1,981
Facilities	949	2,172	2,256
Depreciation	56	110	106
Educational services and facilities	4,349	6,740	8,090
Sales and marketing	1,704	1,394	2,680
Student services	862	1,379	1,073
Bad debt expense	975	1,659	2,187
Administrative	1,236	2,030	2,066
Depreciation	0	0	0
Selling, general and administrative	4,777	6,462	8,006
Loss (gain) on sale of assets	11	1	0
Gain on insurance proceeds	0	0	0
Impairment of goodwill and long-lived assets	0	0	0
Total costs and expenses	9,137	13,203	16,096
OPERATING INCOME	(2,039)	(2,366)	1,295
Corporate [Member]
Summary financial information by reporting segment [Abstract]
REVENUE	0	0	0
COSTS AND EXPENSES:
Instructional	0	0	0
Books and Tools	0	0	0
Facilities	0	0	0
Depreciation	0	0	0
Educational services and facilities	0	0	0
Sales and marketing	0	0	0
Student services	0	0	0
Bad debt expense	3	0	(3)
Administrative	46,944	42,616	32,437
Depreciation	700	630	587
Selling, general and administrative	47,647	43,246	33,021
Loss (gain) on sale of assets	1,489	(30,939)	(205)
Gain on insurance proceeds	(2,794)	0	0
Impairment of goodwill and long-lived assets	0	0	0
Total costs and expenses	46,342	12,307	32,816
OPERATING INCOME	$ (46,342)	$ (12,307)	$ (32,816)