Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Statement of Financial Position [Abstract]
Accounts receivable, net of allowances for doubtful accounts and returns	$ 924	$ 824
Preferred Stock, $.001 par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized shares	4,000,000	4,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common Stock, $.001 par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized shares	100,000,000	100,000,000
Common stock, issued shares	47,889,000	46,995,000
Common stock, outstanding shares	41,914,000	41,315,000
Treasury stock (in shares)	5,975,000	5,680,000