CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Income Statement [Abstract]
Net revenue	$ 203,272	$ 226,256
Cost of revenue	161,736	178,552
Gross profit	41,536	47,704
Operating expenses:
Selling, general and administrative	40,373	49,274
Total operating expenses	40,373	49,274
Operating income (loss)	1,163	(1,570)
Other income (expense):
Interest income	58	11
Interest expense	(3,120)	(2,615)
Other gains, net	4,031	1,176
Total other income (expense)	969	(1,428)
Income (loss) from continuing operations before income taxes	2,132	(2,998)
Income tax expense	11,388	8,837
Loss from continuing operations	(9,256)	(11,835)
Net loss from discontinued operations	(1,712)	(32,556)
Net loss	(10,968)	(44,391)
Less: Preferred dividends on redeemable preferred stock	(2,129)	(2,129)
Net loss attributable to common stockholders	$ (13,097)	$ (46,520)
Continuing operations (in usd per share)	$ (0.19)	$ (0.23)
Discontinued operations (in usd per share)	(0.03)	(0.52)
Basic net loss per share attributable to common stockholders (in usd per share)	(0.22)	(0.75)
Diluted net loss per share attributable to common stockholders (in usd per share)	$ (0.22)	$ (0.75)
Weighted average common shares used in:
Basic loss per share (in shares)	59,964	62,142
Diluted loss per share (in shares)	59,964	62,142