CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Preferred stock, par value (in US$ per share)	$ 1	$ 1
Preferred Stock, Shares Authorized (shares)	500,000	500,000
Liquidation preference	$ 15,221	$ 15,089
Common stock, par value (in US$ per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	25,000,000	25,000,000
Common stock, shares issued (in shares)	16,977,701	16,951,659
Common stock, shares outstanding (in shares)	16,977,701	16,951,659
Cumulative Preferred Stock [Member]
Preferred Stock, Shares Authorized (shares)	21,000	21,000
Preferred stock, issued (in shares)	14,700	14,700