CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated (Deficit) Earnings	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Jul. 31, 2022		6,485,309
Beginning balance at Jul. 31, 2022	$ (9,206)	$ 65	$ 7,479,906	$ (7,493,317)	$ 4,140
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,460			7,460
Preferred dividends	(1,593)			(1,593)
Restricted stock award granted (in shares)		44,240
Share-based compensation	529		529
Other comprehensive items	(79)				(79)
Balance (in shares) at Apr. 30, 2023		6,529,549
Ending balance at Apr. 30, 2023	(2,889)	$ 65	7,480,435	(7,487,450)	4,061
Balance (in shares) at Jul. 31, 2022		6,485,309
Beginning balance at Jul. 31, 2022	$ (9,206)	$ 65	7,479,906	(7,493,317)	4,140
Balance (in shares) at Jul. 31, 2023	6,250,493	6,250,493
Ending balance at Jul. 31, 2023	$ 68,624	$ 65	61,534	7,612	(587)
Balance (in shares) at Apr. 30, 2023		6,529,549
Beginning balance at Apr. 30, 2023	(2,889)	$ 65	7,480,435	(7,487,450)	4,061
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Effect of exchange transaction (in shares)		0
Effect of exchange transaction	66,540		(7,416,849)	7,487,450	(4,061)
Balance (in shares) at May. 01, 2023		6,529,549
Ending balance at May. 01, 2023	63,651	$ 65	63,586	0	0
Balance (in shares) at Apr. 30, 2023		6,529,549
Beginning balance at Apr. 30, 2023	(2,889)	$ 65	7,480,435	(7,487,450)	4,061
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,149			8,149
Preferred dividends	(537)			(537)
Reverse/forward stock split settlement (in shares)		(299,069)
Reverse/forward stock split settlement	(2,288)		(2,288)
Restricted stock grants (in shares)		20,013
Share-based compensation	236		236
Other comprehensive items	$ (587)				(587)
Balance (in shares) at Jul. 31, 2023	6,250,493	6,250,493
Ending balance at Jul. 31, 2023	$ 68,624	$ 65	61,534	7,612	(587)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	87,980			87,980
Preferred dividends	(2,135)			(2,135)
Restricted stock grants (in shares)		69,020
Share-based compensation	632		632
Other comprehensive items	$ (920)				(920)
Balance (in shares) at Jul. 31, 2024	6,319,513	6,319,513
Ending balance at Jul. 31, 2024	$ 154,181	$ 65	$ 62,166	$ 93,457	$ (1,507)