Earnings per Common Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share, Basic [Abstract]
Net loss	$ (17,538)	$ (3,037)
Weighted average shares outstanding - basic (shares)	26,611	26,265
Basic EPS (US$ per share)	$ (0.66)	$ (0.12)
Earnings Per Share, Diluted [Abstract]
Diluted weighted average shares (shares)	26,611	26,265
Diluted EPS (US$ per share)	$ (0.66)	$ (0.12)