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Share-Based Compensation (Details Narrative) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
Share-Based Compensation (Details Narrative) - USD ($)	Oct. 04, 2018	Feb. 29, 2016	Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018	Jul. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units outstanding			74,113,371		74,113,371		68,248,158
Share-based compensation			$ 83,000	$ 226,000		$ 1,076,000
Options issued to purchase common stock					6,602,135
Options expirations term					4 years 11 months 1 day
Weighted average exercise price			$ 1.10		$ 1.10
Weighted average contractual term					4 years 8 months 2 days
Weighted average grant date fair value for options granted					$ 0.30
Weighted-average contractual term of expected to vest					2 years
Dave Pfanzelter [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares units vested amount					$ 739,000
Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options issued to purchase common stock			200,000		100,000
Option vested description					The options vest monthly over a two year period and carry a five year term.
2007 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares increase under the plan		4,000,000
Share-based compensation, expiration date		Feb. 04, 2026
Contractual life vesting periods		10 years
Number of shares available for issuance under the plan			1,143,000		1,143,000
2017 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation					$ 1,330,000
Contractual life vesting periods					10 years
Number of shares available for issuance under the plan			1,971,000		1,971,000
Common stock, shares reserved			5,000,000		5,000,000
Unrecognized compensation cost of unvested stock option grants			$ 387,000		$ 387,000
Restricted Stock Units RSU [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of restricted stock cancelled					131,250
Number of shares not expected to vest						300,000
Unvested restricted stock units outstanding				756,250		756,250
Shares expected to vest						456,250
Unrecognized non-cash compensation costs			$ 262,000		$ 262,000
Unrecognized non-cash compensation costs, weighted average period					1 year 10 months 14 days
Number of restricted stock units vested					1,362,500
Restricted stock units outstanding			2,362,500		2,362,500
RSUs vested and non-delivered underlying common stock			1,606,250		1,606,250
Share-based compensation			$ 53,000	$ 151,000	$ 1,007,000	$ 696,000
Restricted Stock Units RSU [Member] \| Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, share-based compensation					725,000	300,000
Share-based compensation, vesting period					2 years	2 years
Share-based payment award, expiration period					10 years	10 years
Restricted Stock Units RSU [Member] \| Tom Myers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, share-based compensation	500,000
Share-based compensation, vesting period	3 years
Restricted Stock Units RSU [Member] \| Third-Party Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock issued during period, shares, share-based compensation						375,000
Share-based compensation description						We issued 375,000 RSUs to third-party consultants, of which 300,000 are performance based. We currently do not expect the 300,000 RSUs to vest.
Restricted Stock Units RSU [Member] \| Mr. Pfanzelter [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares units vested amount					$ 489,000