Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Jul. 31, 2018	161,175,764				161,175,764
Balance at Jul. 31, 2018	$ 161,176	$ 308,062,379	$ (245,151,636)	$ 103,641	$ 63,175,560
Issued upon exercise of stock options (in shares)					183,500
Balance (in shares) at Oct. 31, 2018					176,123,390
Balance (in shares) at Jul. 31, 2018	161,175,764				161,175,764
Balance at Jul. 31, 2018	$ 161,176	308,062,379	(245,151,636)	103,641	$ 63,175,560
Issued for equity financing, net of issuance costs (in shares)	12,613,049
Shares	$ 12,613	15,978,349			$ 15,990,962
Issued upon exercise of stock options (in shares)	117,386				117,386
Issued upon exercise of stock options	$ 117	72,246			$ 72,363
Warrants Exercised, Issued (in shares)	2,061,764
Warrants Exercised, Issuance Value	$ 2,062	2,494,555			2,496,617
Credit Facility, Issued (in shares)	1,180,328
Credit Facility, Issuance Value	$ 1,180	1,398,820			1,400,000
Common stock issued for consulting services (in shares)	129,706
Common stock issued for consulting services	$ 129	178,325			$ 178,454
Common stock issued under Stock Incentive Plan (in shares)	364,702				364,702
Common stock issued under Stock Incentive Plan	$ 366	529,126			$ 529,492
Amortization of stock option expenses		908,578			908,578
Issued for equity financing		2,606,884			2,606,884
Issued for equity financing as issuance costs		371,366			371,366
Net Loss for the Period			(5,801,100)		(5,801,100)
Reclassification upon adoption of ASU No. 2016-01			103,641	(103,641)
Other comprehensive income				38,232	$ 38,232
Balance (in shares) at Jan. 31, 2019	177,642,699				177,642,699
Balance at Jan. 31, 2019	$ 177,643	332,600,628	(250,849,095)	38,232	$ 81,967,408
Balance (in shares) at Oct. 31, 2018					176,123,390
Issued upon exercise of stock options (in shares)					25,000
Net Loss for the Period					$ (2,349,674)
Balance (in shares) at Jan. 31, 2019	177,642,699				177,642,699
Balance at Jan. 31, 2019	$ 177,643	$ 332,600,628	$ (250,849,095)	$ 38,232	$ 81,967,408