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Common Stock (Details Narrative) - USD ($) |  |  |  |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 20, 2020 | Sep. 18, 2020 | Oct. 24, 2019 | Jan. 07, 2019 | Oct. 31, 2020 | Apr. 30, 2021
2019 ATM Facility [Member] | Alliance Global Partners [Member] |  |  |  |  |  |
Aggregate offering price |  |  |  | $ 25,000,000 |  |
Number of common stock shares sold |  |  |  | 10,942,100 |  |
Proceeds from issuance or sale of equity, net of issuance costs |  |  |  | $ 11,100,000 |  |
Combined purchase price per share |  |  |  | $ 1.01 |  |
Payment of sales commission |  |  |  | $ 360,095 |  |
2019 ATM Facility [Member] | Alliance Global Partners [Member] | Forecast [Member] |  |  |  |  |  |
Number of common stock shares sold |  |  |  |  |  | 5,689,134
Proceeds from issuance or sale of equity, net of issuance costs |  |  |  |  |  | $ 6,400,000
Combined purchase price per share |  |  |  |  |  | $ 1.12
Payment of sales commission |  |  |  |  |  | $ 360,095
2020 ATM Facility [Member] | Alliance Global Partners [Member] | Subsequent Event [Member] |  |  |  |  |  |
Aggregate offering price | $ 50,000,000 |  |  |  |  |
Stock Purchase Agreement [Member] | Aspire Capital Fund, LLC [Member] |  |  |  |  |  |
Number of common stock shares sold |  | 6,424,205 |  |  | 500,000 |
Proceeds from issuance or sale of equity, net of issuance costs |  | $ 4,000,000 |  |  | $ 600,000 |
Combined purchase price per share |  | $ 0.63 |  |  | $ 1.23 |
Aggregate purchase of common stock |  | $ 12,500,000 |  |  |  |
Percentage of outstanding common stock limit for shareholder approval |  | 19.99% |  |  |  |
Number of shares can be issued based upon outstanding percentage |  | 3,722,251 |  |  |  |
Stock Purchase Agreement [Member] | Aspire Capital Fund, LLC [Member] | Maximum [Member] |  |  |  |  |  |
Aggregate purchase of common stock |  |  | $ 10,000,000 |  |  |
Stock Purchase Agreement [Member] | Aspire Capital Fund, LLC [Member] | Forecast [Member] |  |  |  |  |  |
Number of common stock shares sold |  |  |  |  |  | 5,025,000
Proceeds from issuance or sale of equity, net of issuance costs |  |  |  |  |  | $ 2,900,000
Combined purchase price per share |  |  |  |  |  | $ 0.57

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