Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowances for doubtful accounts	$ 2,767	$ 1,956
Finance loans receivable, allowances	3,640	4,227
Property, plant and equipment, accumulated depreciation	$ 92,145	$ 94,014
Common stock, shares authorized	200,000,000	200,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares issued	47,322,702	46,679,565
Common stock, shares outstanding	47,322,702	46,679,565
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares issued
Preferred stock, shares outstanding
Treasury shares, shares outstanding	18,057,228	18,057,228