Note 3 - Loans (Details Textual) xbrli-pure in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2016 USD ($)
Loans and Leases Receivable, Deferred Income	$ 310		$ 310		$ 360
Interest Receivable	614		614		549
Financing Receivable, Recorded Investment, Nonaccrual Status	1,589		1,589		6,034
Financing Receivable, Modifications, Recorded Investment	362		362		3,529
Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount	34		34		43
Loans and Leases Receivable, Impaired, Commitment to Lend	$ 0		$ 0		207
Financing Receivable, Modifications, Number of Contracts	0	0	0	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0	0	0
Threshold Amount of Loans Outstanding to Perform Credit Analysis	$ 100		$ 100
Non-accrual Loans [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	557		557		3,510
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	41		41
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Nonaccrual Status	$ 991		$ 991		$ 2,524