Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Statement of Financial Position [Abstract]
Accounts receivable, net of allowances for doubtful accounts	$ 824	$ 996
Preferred Stock, $.001 par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized shares (in shares)	4,000,000	4,000
Preferred stock, issued shares (in shares)	0	0
Preferred stock, outstanding shares (in shares)	0	0
Common stock, $.001 par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares (in shares)	100,000,000	100,000,000
Common stock, issued shares (in shares)	46,995,000	44,834,000
Common stock, outstanding shares (in shares)	41,315,000	39,028,000
Treasury stock, shares (in shares)	5,680,000	5,806,000