EARNINGS (LOSS) PER SHARE - Reconciliation of (Loss) Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Earnings Per Share [Abstract]
Net income (loss) from continuing operations	$ 3,029	$ (9,695)	$ 7,460	$ (12,163)
Net income (loss) from discontinued operations	0	39,895	0	(108)
Net income (loss)	3,029	30,200	7,460	(12,271)
Less: Preferred dividends on Series C redeemable preferred stock	(519)	(537)	(1,593)	(1,611)
Net income (loss) attributable to common stockholders	2,510	29,663	5,867	(13,882)
Dividends on preferred stock	519	0	1,593	0
Net income (loss) attributable to common stockholders - assuming dilution	$ 3,029	$ 29,663	$ 7,460	$ (13,882)
Net income (loss) from continuing operations - basic (in usd per share)	$ 0.04	$ (0.17)	$ 0.10	$ (0.23)
Net income from discontinued operations - basic (in usd per share)	0	0.67	0	0
Net income (loss) attributable to common stockholders - basic (in usd per share)	0.04	0.50	0.10	(0.23)
Net income (loss) from continuing operations - diluted (in usd per share)	0.04	(0.17)	0.09	(0.23)
Net income from discontinued operations - diluted (in usd per share)	0	0.67	0	0
Net income (loss) attributable to common stockholders - diluted (in usd per share)	$ 0.04	$ 0.50	$ 0.09	$ (0.23)
Weighted average common shares outstanding - basic (in shares)	60,305	59,853	60,186	59,961
Common stock equivalents - Restricted stock and restricted stock shares (in shares)	533	0	516	0
Common stock equivalents - Preferred stock (in shares)	17,857	0	17,857	0
Weighted average common shares outstanding - diluted (in shares)	78,695	59,853	78,559	59,961