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 of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Loans, Major Loan Segments and Classes (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	$ 616,492		$ 531,290
Allowance for loan losses	(10,721)	$ (10,421)	(9,485)	$ (8,988)	$ (8,611)	$ (8,142)
Deferred fees and costs	880		959
Net loans receivable	606,651		522,764
Residential Real Estate [Member] \| Residential Real Estate [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	240,135		234,992
Allowance for loan losses	(2,263)	(2,234)	(2,396)	(2,421)	(2,392)	(2,454)
Residential Real Estate [Member] \| Construction and Land [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	6,220		5,575
Allowance for loan losses	(78)	(63)	(75)	(71)	(70)	(50)
Residential Real Estate [Member] \| Multi-family [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	7,295		3,918
Allowance for loan losses	(34)	(18)	(22)	(22)	(25)	(40)
Commercial Real Estate [Member] \| Real Estate [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	252,816		192,678
Allowance for loan losses	(5,506)	(5,365)	(4,541)	(4,397)	(4,020)	(3,699)
Commercial Real Estate [Member] \| Construction [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	27,575		20,159
Allowance for loan losses	(648)	(603)	(502)	(314)	(331)	(233)
Consumer Loan [Member] \| Home Equity [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	20,276		20,893
Allowance for loan losses	(227)	(257)	(309)	(305)	(305)	(314)
Consumer Loan [Member] \| Consumer Installment [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	4,457		4,350
Allowance for loan losses	(164)	(224)	(228)	(192)	(188)	(223)
Commercial Loans [Member]
Loans and Leases Receivable Disclosure [Line Items]
Total gross loans	57,718		48,725
Allowance for loan losses	$ (1,571)	$ (1,513)	$ (1,412)	$ (1,260)	$ (1,272)	$ (1,129)