Earnings Per Share - Schedule of Earnings (Loss) Per Share and Shares Outstanding (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Earnings (Loss) from continuing operations	$ (1,722)	$ 6,937
Basic:
Weighted-average shares outstanding	6,945	6,907
Diluted:
Weighted-average shares outstanding	6,945	6,989
Earnings (loss) from discontinued operations	$ (287)	$ (47)
Net earnings (loss)	$ (2,009)	$ 6,890
Weighted-average number of shares outstanding—basic	6,945	6,907
Effect of dilutive director, employee and guarantor options and outstanding common share warrants	0	82
Weighted-average number of shares outstanding—diluted	6,945	6,989
Basic:
Weighted-average shares outstanding, Per Share Amount from continuing operations	$ (0.25)	$ 1.00
Weighted-average shares outstanding, Per Share Amount from discontinued operations	(0.04)	(0.01)
Weighted-average shares outstanding, per share	(0.29)	1.00
Diluted:
Weighted-average shares outstanding, Per Share Amount from continuing operations	(0.25)	0.99
Weighted-average shares outstanding, Per Share Amount from discontinued operations	(0.04)	(0.01)
Weighted-average shares outstanding, per share	$ (0.29)	$ 0.99