The Company and its Significant Accounting Policies - Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per common share (Details) - USD ($) shares in Thousands, $ 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
Numerator:
Net income (loss) used to compute basic and diluted loss per share	$ (152)	$ 2,625	$ 10,710	$ (9,356)	$ (1,400)	$ (1,184)	$ (4,640)	$ (9,206)	$ 3,827	$ (16,430)	$ (23,899)
Weighted average common shares used in computing net income (loss) per share:
Weighted average shares used to compute basic income (loss) per share	90,748	90,476	89,517	88,772					89,874	87,465	84,893
Weighted average shares used to compute diluted income (loss) per share	90,748	90,855	90,279	88,772					90,623	87,465	84,893