Note 10 - Credit Quality of Financing Receivables and Allowance for Credit Losses - Risk Classification of Financing Receivables by Portfolio Class (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Jun. 30, 2016
Risk classification of financing receivables	$ 570,005	$ 648,272
Commercial Portfolio Segment [Member]
Risk classification of financing receivables	140,788	181,238
Education Government Non-profit Leases [Member]
Risk classification of financing receivables	49,279	58,726
Commercial and Industrial Loans [Member]
Risk classification of financing receivables	373,581	401,629
Commercial Real Estate Portfolio Segment [Member]
Risk classification of financing receivables	6,357	6,679
Pass [Member]
Risk classification of financing receivables	561,087	637,612
Pass [Member] | Commercial Portfolio Segment [Member]
Risk classification of financing receivables	137,353	174,679
Pass [Member] | Education Government Non-profit Leases [Member]
Risk classification of financing receivables	49,064	58,344
Pass [Member] | Commercial and Industrial Loans [Member]
Risk classification of financing receivables	368,313	397,910
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Risk classification of financing receivables	6,357	6,679
Special Mention [Member]
Risk classification of financing receivables	8,914	10,407
Special Mention [Member] | Commercial Portfolio Segment [Member]
Risk classification of financing receivables	3,433	6,308
Special Mention [Member] | Education Government Non-profit Leases [Member]
Risk classification of financing receivables	213	380
Special Mention [Member] | Commercial and Industrial Loans [Member]
Risk classification of financing receivables	5,268	3,719
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member]
Risk classification of financing receivables
Substandard [Member]
Risk classification of financing receivables		241
Substandard [Member] | Commercial Portfolio Segment [Member]
Risk classification of financing receivables		241
Substandard [Member] | Education Government Non-profit Leases [Member]
Risk classification of financing receivables
Substandard [Member] | Commercial and Industrial Loans [Member]
Risk classification of financing receivables
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Risk classification of financing receivables
Doubtful [Member]
Risk classification of financing receivables	4	12
Doubtful [Member] | Commercial Portfolio Segment [Member]
Risk classification of financing receivables	2	10
Doubtful [Member] | Education Government Non-profit Leases [Member]
Risk classification of financing receivables	2	2
Doubtful [Member] | Commercial and Industrial Loans [Member]
Risk classification of financing receivables
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Risk classification of financing receivables
Non-accrual [Member]
Risk classification of financing receivables	4	12
Non-accrual [Member] | Commercial Portfolio Segment [Member]
Risk classification of financing receivables	2	10
Non-accrual [Member] | Education Government Non-profit Leases [Member]
Risk classification of financing receivables	2	2
Non-accrual [Member] | Commercial and Industrial Loans [Member]
Risk classification of financing receivables
Non-accrual [Member] | Commercial Real Estate Portfolio Segment [Member]
Risk classification of financing receivables