REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
REVENUE RECOGNITION [Abstract]
Unearned tuition	$ 22,265		$ 26,906
Revenue recognized included in contract liability	21,600
Disaggregation of Revenue [Abstract]
Total revenues	103,366	$ 87,284
Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	5,747	4,708
Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	97,619	82,576
Campus Operations [Member]
Disaggregation of Revenue [Abstract]
Total revenues	103,366	86,352
Campus Operations [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	5,747	4,699
Campus Operations [Member] | Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	97,619	81,653
Transitional [Member]
Disaggregation of Revenue [Abstract]
Total revenues	0	932
Transitional [Member] | Services Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	0	9
Transitional [Member] | Services Transferred over Time [Member]
Disaggregation of Revenue [Abstract]
Total revenues	$ 0	$ 923