SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Adoption of Recent Accounting Pronouncements (Details) - USD ($)	Mar. 31, 2020	Jul. 01, 2019	Jun. 30, 2019
Adoption of Recent Accounting Pronouncements
Equity securities	$ 2,884,000		$ 3,618,000
Equity securities
Adoption of Recent Accounting Pronouncements
Amortized Cost			2,800,000
Equity securities			$ 3,600,000
ASU 2014-09
Adoption of Recent Accounting Pronouncements
Net increase to beginning retained earnings due to impact of adopting new ASU		$ 291,000
ASU 2016-01
Adoption of Recent Accounting Pronouncements
Net increase to beginning retained earnings due to impact of adopting new ASU		$ 599,000