Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 7,313	$ 7,676
Convertible preferred stock, shares authorized (in shares)	900,000	900,000
Convertible preferred stock, shares issued (in shares)	445,063	445,063
Convertible preferred stock, shares outstanding (in shares)	445,063	445,063
Convertible preferred stock, liquidation preference	$ 21,113	$ 20,779
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	1,800,000	1,800,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	640,000,000	640,000,000
Common stock, shares issued (in shares)	65,252,965	65,196,882
Common stock, shares outstanding (in shares)	65,252,965	65,196,882