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Stock-Based Compensation (Details Narrative) - USD ($) $ in Thousands | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2020 | Dec. 31, 2019 | Oct. 31, 2020 | Oct. 31, 2019 | Jan. 18, 2018 | Dec. 31, 2015
Employee Stock Option [Member] |  |  |  |  |  |
Number of shares granted during the period |  |  |  |  |  |
Share-based compensation unvested shares of stock options |  |  | 301,000 |  |  |
Share-based compensation intrinsic value of outstanding |  |  | $ 0 |  |  |
Share-based compensation options, exercisable intrinsic value |  |  | $ 301,000 |  |  |
Share-based compensation weighted average remaining contractual term |  |  | 9 years 2 months 12 days |  |  |
Share-based compensation expense |  |  | $ 187 | $ 163 |  |
Unrecognized compensation cost related to non-vested stock options |  |  | $ 123 |  |  |
Share-based compensation cost expected to recognize weighted-average term |  |  | 8 months 12 days |  |  |
Employee Stock Option [Member] | Performance-based Stock Options [Member] |  |  |  |  |  |
Share-based compensation unvested shares of stock options |  |  | 81,334 |  |  |
Employee Stock Option [Member] | Performance-based Stock Options [Member] | Two Executives [Member] |  |  |  |  |  |
Number of shares granted during the period | 81,334 |  |  |  |  |
Stock options vesting period, description | The awards can vest over 2 years if there is positive total shareholder return (e.g. share price increase) as measured to the 5-day (January 11-15, 2021) and (January 10-14, 2022) share price Volume Weighted Average Price ("VWAP"). |  |  |  |  |
Employee Stock Option [Member] | Subject to Service- Based Vesting Requirements [Member] | Employee [Member] |  |  |  |  |  |
Share-based compensation expense |  |  | $ 25 | 0 |  |
Unrecognized compensation cost related to non-vested stock options |  |  | $ 5 |  |  |
Share-based compensation cost expected to recognize weighted-average term |  |  | 1 month 6 days |  |  |
Restricted stock options, granted during period |  | 51,547 |  |  |  |
Employee Stock Option One [Member] |  |  |  |  |  |
Share-based compensation unvested shares of stock options |  |  | 471,000 |  |  |
Restricted Stock [Member] |  |  |  |  |  |
Share-based compensation expense |  |  | $ 10 | $ 5 |  |
Unrecognized compensation cost related to non-vested stock options |  |  | $ 2 |  |  |
Share-based compensation cost expected to recognize weighted-average term |  |  | 1 month 6 days |  |  |
2015 Omnibus Incentive Plan [Member] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares authorized |  |  |  |  |  | 732,036
Stock based compensation shares, available for grant |  |  | 192,777 |  |  |
2018 Inducement Plan [Member] |  |  |  |  |  |
Stock based compensation shares, available for grant |  |  | 11,487 |  | 25,000 |

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