STUDENT RECEIVABLES, Student Receivables (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
STUDENT RECEIVABLES [Abstract]
Accounts receivables		$ 15,341	$ 15,341	$ 22,734
Student Receivables [Abstract]
2023	[1]	53,823	53,823
2022	[1]	20,331	20,331
2021	[1]	8,865	8,865
2020	[1]	3,935	3,935
2019	[1]	2,662	2,662
Thereafter	[1]	1,545	1,545
Total	[1]	91,161	91,161
Write-Off's [Abstract]
2023	[2]	0	0
2022	[2]	7,916	14,246
2021	[2]	939	2,027
2020	[2]	210	385
2019	[2]	178	387
Thereafter	[2]	96	159
Total	[2]	$ 9,339	$ 17,204

[1] Student receivables are presented gross and only relate to amounts owed directly from the individual student.  These receivables do not include amounts owed relating to federal subsidy or from corporate partnerships.

[2] Write-off amounts included only relate to the three months and six months ended June 30, 2023.