CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Income Statement [Abstract]
Net revenue	$ 50,487	$ 41,341
Cost of revenue	33,251	29,866
Gross profit	17,236	11,475
Operating expenses:
Selling, general and administrative	9,842	8,795
Amortization	893	875
Total operating expenses	10,735	9,670
Operating income	6,501	1,805
Other (expense) income:
Interest income	2,814	3,219
Interest expense	(111)	(247)
Other (losses) gains, net	(6,022)	330
Total other (expense) income, net	(3,319)	3,302
Income before income taxes	3,182	5,107
Income tax expense	817	671
Net income	2,365	4,436
Less: Preferred dividends on Series C redeemable preferred stock	(537)	(536)
Net income attributable to common stockholders	$ 1,828	$ 3,900
Net income per common shares - basic (in usd per share)	$ 0.07	$ 0.15
Net income per common shares - diluted (in usd per share)	$ 0.07	$ 0.15
Weighted-average number of common shares outstanding - basic (in shares)	6,256	6,199
Weighted-average number of common shares outstanding - basic (in shares)	26,104	26,066