Loans, Major Loan Segments and Classes (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Major Loan Segments and Classes [Abstract]
Total gross loans	$ 798,105	$ 715,641
Allowance for loan losses	(13,200)	(12,024)	$ (11,022)
Deferred fees and costs	833	814
Net loans receivable	785,738	704,431
Residential Real Estate [Member] \| Residential Real Estate [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	267,802	255,848
Allowance for loan losses	(2,026)	(2,116)	(2,289)
Residential Real Estate [Member] \| Construction and Land [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	7,462	9,951
Allowance for loan losses	(87)	(114)	(89)
Residential Real Estate [Member] \| Multi-family [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	24,592	14,961
Allowance for loan losses	(180)	(162)	(43)
Commercial Real Estate [Member] \| Real Estate [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	329,668	283,935
Allowance for loan losses	(7,110)	(5,979)	(5,589)
Commercial Real Estate [Member] \| Construction [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	36,361	39,366
Allowance for loan losses	(872)	(950)	(687)
Consumer Loan [Member] \| Home Equity [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	23,185	21,919
Allowance for loan losses	(314)	(317)	(234)
Consumer Loan [Member] \| Consumer Installment [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	5,481	5,017
Allowance for loan losses	(250)	(224)	(231)
Commercial Loans [Member]
Major Loan Segments and Classes [Abstract]
Total gross loans	103,554	84,644
Allowance for loan losses	$ (2,361)	$ (2,128)	$ (1,680)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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