INVESTMENT SECURITIES (Narrative) (Details) - USD ($)	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Realized investment security gains	$ 34,800	$ 25,300
Proceeds from sale Investments	6,100,000	$ 1,000,000.0
Pledged for FHLB [Member]
Investment securities pledged as collateral	13,700,000
Investment securities pledged as collateral, fair value	13,800,000
Pledged for FRB [Member]
Investment securities pledged as collateral	40,400,000
Investment securities pledged as collateral, fair value	40,700,000
Investment securities pledged as collateral, excess collateral	40,400,000
Investment securities pledged as collateral excess collateral, fair value	$ 40,700,000