MORTGAGE-BACKED SECURITIES (Schedule of Mortgage-Backed Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Amortized cost
Due in one year or less	$ 750
Due after one through five years	2,745
Due after five through ten years
Due after ten years
Total	3,495	$ 3,995
Fair value
Due in one year or less	759
Due after one through five years	2,866
Due after five through ten years
Due after ten years
Total	3,625	4,080
Collateralized Mortgage Obligations [Member]
Amortized cost
Due in one year or less
Due after one through five years	102
Due after five through ten years
Due after ten years	102,208
Total	102,310	108,331
Fair value
Due in one year or less
Due after one through five years	104
Due after five through ten years
Due after ten years	100,577
Total	$ 100,681	$ 108,708