Quarterly Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Quarterly Financial Information Disclosure [Abstract]
Net revenues	$ 42,546	$ 61,175	$ 68,334	$ 64,490	$ 68,234	$ 63,311	$ 60,206	$ 56,266	$ 236,545	$ 248,017	$ 217,043
Gross profit	32,402	48,950	54,616	51,818	54,772	51,145	48,729	45,691	187,786	200,337	177,559
Net (loss) income	$ (15,166)	$ (2,889)	$ (3,401)	$ (5,780)	$ 1,469	$ 672	$ 492	$ (2,888)	$ (27,236)	$ (255)	$ 1,712
Earnings per common share — basic	$ (0.43)	$ (0.08)	$ (0.10)	$ (0.17)	$ 0.04	$ 0.02	$ 0.01	$ (0.09)	$ (0.79)	$ (0.01)	$ 0.05
Earnings per common share — diluted	$ (0.43)	$ (0.08)	$ (0.10)	$ (0.17)	$ 0.04	$ 0.02	$ 0.01	$ (0.09)	$ (0.79)	$ (0.01)	$ 0.05