Note 10 - Fair Value Measurements (Details Textual)	6 Months Ended
	Dec. 31, 2018
Valuation, Market Approach [Member] | Minimum [Member]
Fair Value Inputs, Underlying Collateral On Impaired Loans	0.00%
Valuation, Market Approach [Member] | Maximum [Member]
Fair Value Inputs, Underlying Collateral On Impaired Loans	100.00%
Valuation Technique, Discounted Cash Flow [Member] | Minimum [Member] | Measurement Input, Constant Prepayment Rate [Member]
Servicing Asset, Measurement Input	0.106
Valuation Technique, Discounted Cash Flow [Member] | Minimum [Member] | Measurement Input, Discount Rate [Member]
Servicing Asset, Measurement Input	0.088
Valuation Technique, Discounted Cash Flow [Member] | Maximum [Member] | Measurement Input, Constant Prepayment Rate [Member]
Servicing Asset, Measurement Input	0.124
Valuation Technique, Discounted Cash Flow [Member] | Maximum [Member] | Measurement Input, Discount Rate [Member]
Servicing Asset, Measurement Input	0.177