Goodwill and Intangible Assets - Schedule of Acquired Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 8,093	$ 8,389
Accumulated Amortization	6,002	5,622
Net Carrying Amount	2,091	2,767
MSRs [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	819	692
Accumulated Amortization	195	124
Net Carrying Amount	624	568
Core deposit intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	7,274	7,697
Accumulated Amortization	5,807	5,498
Net Carrying Amount	$ 1,467	$ 2,199