STUDENT RECEIVABLES, Student Receivables (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
		Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
STUDENT RECEIVABLES [Abstract]
Accounts receivables		$ 16,703	$ 16,703	$ 22,734
Student Receivables [Abstract]
2023	[1]	71,867	71,867
2022	[1]	14,678	14,678
2021	[1]	7,797	7,797
2020	[1]	3,481	3,481
2019	[1]	2,318	2,318
Thereafter	[1]	1,258	1,258
Total	[1]	101,399	101,399
Write-Off's [Abstract]
2023	[2]	2,870	2,920
2022	[2]	4,626	18,820
2021	[2]	587	2,615
2020	[2]	162	547
2019	[2]	73	461
Thereafter	[2]	85	244
Total	[2]	$ 8,403	$ 25,607

[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 nine months ended September 30, 2023.