Note 3 - Loans (Details Textual)	3 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due	$ 1,765,000		$ 2,524,000
Non-accrual Loans [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	589,000		3,510,000
Loans and Leases Receivable, Deferred Income	342,000		360,000
Recorded InvestmentIn Loans	578,000		549,000
Financing Receivable, Recorded Investment, Past Due	1,790,000		2,728,000
Financing Receivable, Recorded Investment, Nonaccrual Status	2,354,000		6,034,000
Financing Receivable, Modifications, Recorded Investment	768,000		3,529,000
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount	38,000		43,000
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0		$ 207,000
Financing Receivable, Modifications, Number of Contracts	0	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Threshold Amount of Loans Outstanding to Perform Credit Analysis	$ 100,000