HELD-TO-MATURITY SECURITIES - Summary of investments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Amortized Cost	$ 72,538	$ 91,560
Gross Unrealized Gains	18	32
Gross Unrealized Losses	(13)	(161)
Estimated Fair Value	72,543	91,431
Corporate Bond
Amortized Cost	72,538	81,743
Gross Unrealized Gains	18	1
Gross Unrealized Losses	(13)	(160)
Estimated Fair Value	$ 72,543	81,584
US Treasury Bill Securities [Member]
Amortized Cost		9,817
Gross Unrealized Gains		31
Gross Unrealized Losses		(1)
Estimated Fair Value		$ 9,847