CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Jun. 30, 2020
Jun. 30, 2019
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts receivable $ 203 $ 203
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000
Preferred stock, shares issued (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 500,000,000 500,000,000
Common stock, shares outstanding (in shares) 63,687,891 69,472,568