Note 13 - Capital Stock (Tables)

9 Months Ended

Apr. 30, 2022

Notes Tables

Schedule Of Share based Compensation Warrants Activity [Table Text Block]

	Number of Warrants			Weighted Average Exercise Price
Balance, July 31, 2021		5,387,323		$	1.90
Exercised		(491,849	)		1.85
Balance, October 31, 2021		4,895,474			1.91
Exercised		(572,850	)		1.99
Balance, January 31, 2022		4,322,624			1.90
Exercised		(339,845	)		1.80
Balance, April 30, 2022		3,982,779		$	1.91

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

Weighted Average Exercise Price		Number of Warrants Outstanding		Weighted Average Remaining Contractual Life (Years)		Expiry Date
$	1.80		3,775,961		0.40	September 23, 2022
	1.64		25,000		1.06	May 21, 2023
	4.13		181,818		3.93	April 5, 2026
$	1.91		3,982,779		0.57

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

	Number of Stock Options			Weighted Average Exercise Price
Balance, July 31, 2021		10,404,333		$	1.21
Granted		10,000			2.89
Exercised		(1,030,543	)		1.18
Expired		(60,000	)		2.78
Balance, October 31, 2021		9,323,790			1.20
Exercised		(244,834	)		1.27
Expired		(15,000	)		1.36
Balance, January 31, 2022		9,063,956			1.20
Exercised		(1,182,605	)		1.15
Balance, April 30, 2022		7,881,351		$	1.21

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

	Three Months Ended April 30,				Nine Months Ended April 30,
	2022		2021		2022		2021
Number of Options Exercised on Cash Basis		404,832		953,939		807,580		1,141,439
Number of Options Exercised on Forfeiture Basis		777,773		988,909		1,650,402		1,930,691
Total Number of Options Exercised		1,182,605		1,942,848		2,457,982		3,072,130
Number of Shares Issued on Cash Exercise		404,832		953,939		807,580		1,141,439
Number of Shares Issued on Forfeiture Basis		595,478		557,608		1,140,065		943,168
Total Number of Shares Issued Upon Exercise of Options		1,000,310		1,511,547		1,947,645		2,084,607
Cash Received from Exercise of Stock Options	$	403,949	$	1,086,844	$	851,132	$	1,308,278
Total Intrinsic Value of Options Exercised	$	4,890,780	$	3,026,602	$	7,685,293	$	3,855,217

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, 2021		3,891,207		$	0.66
Granted		10,000			1.73
Vested		(265,427	)		0.87
Balance, October 31, 2021		3,635,780			0.64
Vested		(1,069,948	)		0.55
Balance, January 31, 2022		2,565,832			0.68
Vested		(11,872	)		1.34
Balance, April 30, 2022		2,553,960		$	0.68

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

			Options Outstanding						Options Exercisable
Range of Exercise Prices			Outstanding at April 30, 2022		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Exercisable at April 30, 2022		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
$0.80	to	$0.99		4,121,936	$	0.92		7.80		3,167,875	$	0.92		7.68
$1.00	to	$1.49		1,796,875		1.15		6.16		913,541		1.20		4.17
$1.50	to	$2.89		1,962,540		1.86		5.03		1,245,975		1.65		2.63
				7,881,351	$	1.21		6.74		5,327,391	$	1.14		5.90

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

Grant Date	Number of Restricted Stock Units		Grant Date Fair Value		Remaining Life (Years)		Aggregate Intrinsic Value
July 30, 2019		154,999	$	0.94		0.25	$	658,746
July 16, 2020		434,996		0.91		1.21		1,848,733
July 21, 2021		407,617		2.15		2.23		1,732,372
		997,612	$	1.42		1.48	$	4,239,851

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

	Three Months Ended April 30,				Nine Months Ended April 30,
	2022		2021		2022		2021
Stock-Based Compensation for Consultants
Common stock issued to consultants	$	158,313	$	229,047	$	664,015	$	468,364
Amortization of stock option expenses		37,130		54,593		173,705		224,295
		195,443		283,640		837,720		692,659
Stock-Based Compensation for Management
Amortization of stock option expenses		91,033		154,531		382,190		614,579
Amortization of RSU and PRSU expenses		255,933		300,514		780,264		919,270
		346,966		455,045		1,162,454		1,533,849
Stock-Based Compensation for Employees
Common stock issued to employees		281,796		264,484		893,803		738,996
Amortization of stock option expenses		127,190		164,558		632,284		798,796
		408,986		429,042		1,526,087		1,537,792
	$	951,395	$	1,167,727	$	3,526,261	$	3,764,300