Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Statement of Financial Position [Abstract]
Debt securities available for sale, at fair value, amortized cost	$ 93,342	$ 124,918
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized shares	10,000,000	10,000,000
Preferred stock issued shares	0	0
Preferred stock shares outstanding	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized	60,000,000	60,000,000
Common stock shares issued	17,020,724	17,021,357
Common stock shares outstanding	17,020,724	17,021,357