Net Income (Loss) Per Common Share - 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 Units, $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income	$ (1,046)	$ 179	$ (1,028)	$ (390)	$ 4,769	$ 402	$ (1,895)	$ 4,781
Denominator:
Weighted average shares outstanding - basic	92,761,000			93,123,000			91,780,000	92,106,000
Dilutive effect of potential common shares	0			0			0	1,316,000
Weighted average shares outstanding - diluted	92,761,000			93,123,000			91,780,000	93,422,000
Basic net income (loss) per share	$ (0.01)			$ (0.00)			$ (0.02)	$ 0.05
Diluted net income (loss) per share	$ (0.01)			$ (0.00)			$ (0.02)	$ 0.05