LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES (Schedule of increased ALL reserve factors) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase (decrease) in allowance for credit losses	$ 19		$ 35
Multi-family residential real estate loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase (decrease) in allowance for credit losses		$ 9
One To Four Family First Mortgage Loan Receivable Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase (decrease) in allowance for credit losses		8		$ 37
ALL reserve factor (as a percent)			0.40%	0.35%
Construction Loan Receivable Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase (decrease) in allowance for credit losses		$ 5		$ 21
Construction One to Four Family First Mortgage Loan Receivable Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL reserve factor (as a percent)			0.75%	0.75%
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase (decrease) in allowance for credit losses				$ 5
Consumer Loan Receivable Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Increase (decrease) in allowance for credit losses				$ 5
Construction Five Plus Family First Mortgage Loan Receivable Allowance [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL reserve factor (as a percent)			1.00%	1.00%