Note 12 - Stock-based Compensation (Tables)

9 Months Ended

Apr. 30, 2024

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Stock			Weighted Average
	Options			Exercise Price
Balance, July 31, 2023		8,326,983		$	1.92
Granted		17,500			5.04
Exercised		(608,182	)		1.69
Cancelled/Forfeited		(191,259	)		1.59
Expired		(27,000	)		3.69
Balance, October 31, 2023		7,518,042			1.94
Granted		10,000			7.63
Exercised		(878,503	)		1.45
Balance, January 31, 2024		6,649,539			2.01
Granted		40,143			6.70
Exercised		(406,411	)		1.61
Cancelled/Forfeited		(8,600	)		3.45
Expired		(25,000	)		1.44
Balance, April 30, 2024		6,249,671			2.07

Cash Proceeds Received and Tax Benefit from Share-Based Payment Awards [Table Text Block]

	Three Months Ended April 30,				Nine Months Ended April 30,
	2024		2023		2024		2023
Number of Options Exercised on Cash Basis		202,437		-		492,112		138,537
Number of Options Exercised on Forfeiture Basis		203,974		337,500		1,400,984		2,727,295
Total Number of Options Exercised		406,411		337,500		1,893,096		2,865,832
Number of Shares Issued on Cash Exercise		202,437		-		492,112		138,537
Number of Shares Issued on Forfeiture Basis		142,640		204,693		968,825		1,565,059
Total Number of Shares Issued Upon Exercise of Options		345,077		204,693		1,460,937		1,703,596
Cash Received from Exercise of Stock Options	$	281	$	-	$	681	$	206
Total Intrinsic Value of Options Exercised	$	2,431	$	858	$	9,022	$	6,834

Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]

	Number of Unvested Stock Options			Weighted Average Grant-Date Fair Value
Balance, July 31, 2023		1,803,265		$	2.28
Granted		17,500			3.36
Cancelled/Forfeited		(12,300	)		2.37
Vested		(133,062	)		2.18
Balance, October 31, 2023		1,675,403			2.29
Granted		10,000			5.05
Vested		(429,513	)		2.39
Balance, January 31, 2024		1,255,890			2.28
Granted		40,143			4.45
Cancelled/Forfeited		(8,600	)		2.27
Vested		(29,687	)		2.29
Balance, April 30, 2024		1,257,746			2.35

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Exercise Price	4.722 to7.6363
Expected Risk Free Interest Rate	3.99% to 4.67%
Expected Volatility	79.30% to 79.57%
Expected Life in Years	5
Expected Dividend Yield	0.00%

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

	Options Outstanding						Options Exercisable
					Weighted						Weighted
					Average						Average
Range of			Weighted		Remaining				Weighted		Remaining
Exercise	Outstanding at		Average		Contractual		Exercisable at		Average		Contractual
Prices	April 30, 2024		Exercise Price		Term (Years)		April 30, 2024		Exercise Price		Term (Years)
$0.91 to $0.99		2,140,500	$	0.92		5.83		2,140,500	$	0.92		5.83
$1.00 to $1.99		1,325,000		1.10		6.21		1,325,000		1.10		6.21
$2.00 to $2.99		537,149		2.26		7.18		537,149		2.26		7.18
$3.00 to $3.99		2,176,879		3.61		8.43		982,401		3.71		8.02
$4.00 to $4.99		7,500		4.56		9.06		2,500		4.48		8.92
$5.00 to $5.99		12,500		5.16		9.42		3,125		5.16		9.42
$6.00 to $6.99		40,143		6.70		9.89		-
$7.00 to $7.63		10,000		7.63		9.73		1,250		7.63		9.73
		6,249,671	$	2.07		6.98		4,991,925	$	1.67		6.51

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

	Number of
	Restricted Stock		Grant Date		Remaining Life		Aggregate
Grant Date	Units		Fair Value		(Years)		Intrinsic Value
July 21, 2021		135,875		2.15		0.31		917
May 1, 2022		39,216		4.25		1.09		265
July 29, 2022		184,023		3.98		1.33		1,242
July 31, 2023		620,386		3.32		2.34		4,188
January 2, 2024		1,166		6.44		2.76		8
January 22, 2024		8,919		7.63		0.82		60
March 13, 2024		2,288		6.49		0.95		15
April 1, 2024		20,000		7.07		3.00		135
		1,011,873	$	3.44		1.83	$	6,830

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

	Three Months Ended				Nine Months Ended
	April 30,				April 30,
	2024		2023		2024		2023
Stock-Based Compensation for Consultants
Common stock issued to consultants	$	-	$	107	$	-	$	382
Amortization of stock option expenses		87		95		302		467
		87		202		302		849
Stock-Based Compensation for Management
Amortization of stock option expenses		120		95		488		323
Amortization of RSU and PRSU expenses		585		346		1,774		1,053
		705		441		2,262		1,376
Stock-Based Compensation for Employees
Common stock issued to employees		-		188		-		675
Amortization of stock option expenses		285		314		1,362		1,441
Amortization of RSU expenses		26		37		61		114
		311		539		1,423		2,230
	$	1,103	$	1,182	$	3,987	$	4,455