Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Consolidated Balance Sheets [Abstract]
Trade receivables, allowance for doubtful accounts	$ 1,200	$ 1,300
Cumulative Preferred stock, par value	$ 50	$ 50
Cumulative Preferred stock, authorized	60,000	60,000
Cumulative Preferred stock, outstanding	0	0
Undesignated (subordinated) stock, par value	$ 1	$ 1
Undesignated (subordinated) stock, authorized	700,000	700,000
Undesignated (subordinated) stock, outstanding	0	0
Common stock, par value	$ 1	$ 1
Common stock, authorized	15,000,000	15,000,000
Common stock, outstanding	7,774,309	7,700,149