CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Preferred stock, par value (in US$ per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	500,000	500,000
Preferred stock, issued (in shares)	14,700	14,700
Preferred Stock, outstanding (in shares)	14,700	14,700
Liquidation Preference	$ 16,752	$ 16,178
Common stock, par value (in US$ per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	25,000,000	25,000,000
Common stock, shares issued (in shares)	17,852,793	17,852,793
Common stock, shares outstanding (in shares)	17,347,774	17,347,774
Cumulative Preferred Stock [Member]
Preferred stock, shares authorized (in shares)	21,000	21,000