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Equity - Consultant Stock Plan (Details) - USD ($) | 3 Months Ended | 12 Months Ended | 17 Months Ended | 21 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2018 | Aug. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Sep. 30, 2019
Share-based compensation |  |  |  |  |  |
Shares issued for services, $3.50 (in dollars per share) |  |  | $ 1.03 | $ 1.44 |  |
Fair value of stock options issued for board service |  |  | $ 137,000 |  |  |
Consultant Plan [Member] |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Number of common stock reserved for issuance |  |  | 190,142 |  | 190,142 |
Maximum increase in available number of authorized shares as a percentage of new shares issued |  |  | 1.00% |  |  |
Shares issued for services (in shares) |  |  | 7,500 |  |  |
Shares issued for services, $3.50 (in dollars per share) |  |  | $ 3.50 | $ 3.50 |  |
Shares issued for services ($3.50 per share) |  |  |  | $ 26,000 |  |
Fair value of stock options issued for board service (in shares) |  |  |  |  | 10,000 |
Shares issued for services, $1.44 (in dollars per share) |  |  | $ 1.44 |  |  |
Fair value of stock options issued for board service |  |  | $ 14,000 |  |  |
Compensation expense |  |  | $ 14,000 | $ 30,000 |  |
Consultant Plan [Member] | Consultant, Two |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Shares issued for services (in shares) |  | 10,000 |  |  |  |
Shares issued for services $1.03 (in dollars per share) |  |  | $ 1.03 |  |  |
Fair value of stock options $1.03 issued for board service |  |  | $ 10,000 |  |  |
Consultant Plan [Member] | General and administrative |  |  |  |  |  |
Share-based compensation |  |  |  |  |  |
Shares expensed in period | 2,500 |  |  |  |  |
Compensation expense | $ 4,000 |  |  |  |  | $ 10,000

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