Loans receivable (Details 4) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Modifications [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual	$ 4,990	$ 6,227
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	1,966	3,513
Residential Real Estate One To Four Family [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual	4,243	5,767
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	1,930	3,513
Construction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual	289	0
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Non residential real estate and land [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual	393	384
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Commercial Nonmortgage [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual	0	47
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0	0
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual	65	29
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	$ 36	$ 0