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Convertible Notes Payable (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 16, 2021 | Jan. 01, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jan. 31, 2021 | Jun. 23, 2020
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Accrued interest |  |  | $ 1,669 | $ 1,901 |  |  |
Accounting Standards Update 2020-06 [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Debt instrument, unamortized discount |  |  | $ 4,700 | 4,500 |  |  |
Interest expense due to amortization of debt discount |  |  |  |  | $ 200 |  |
Common Stock [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Common stock shares, unissued |  |  | 327,298 |  |  |  |
Notes Payables Issued For Cash [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Outstanding balance |  |  |  |  | 24,100 |  |
Proceeds from notes payable in cash |  | $ 1,200 |  |  |  |  |
Conversion rate | $ 3.40 |  |  |  |  |  |
Converted shares | 7,438,235 |  |  |  |  |  |
Notes Payable Issued For Settlement Agreements [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Conversion rate | $ 3.40 |  |  |  |  |  |
Converted shares | 743,529 |  |  |  |  |  |
Notes Payable Issued For Settlement Agreements [Member] | Fiscal 2019 and 2020 [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Outstanding balance |  |  |  |  | 2,500 |  |
Notes Payable Issued For Forbearance Agreements [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Conversion rate | $ 3.40 |  |  |  |  |  |
Converted shares | 1,132,059 |  |  |  |  |  |
Outstanding balance |  |  |  |  | 3,800 |  |
Principal amount |  |  |  |  |  |  | $ 13,200
Notes Payable Issued For Consulting Agreement [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Conversion rate | $ 3.40 |  |  |  |  |  |
Converted shares | 472,059 |  |  |  |  |  |
Principal amount |  |  | $ 33,300 |  |  |  |
Total, notes payable |  |  | $ 38,800 |  | 400 | $ 700 |
Notes payable for unpaid consulting fee |  |  |  |  | 500 |  |
Accrued interest |  |  |  | $ 700 | 4,800 |  |
Total accrued interest | $ 5,500 |  |  |  |  |  |
Number of shares issued for accrued interest | 1,627,440 |  |  |  |  |  |
Notes Payable Issued For Consulting Agreement [Member] | January 2021 [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Converted shares |  |  | 11,413,322 | 11,086,024 |  |  |
Accrued interest |  |  | $ 5,500 |  |  |  |
Convertible Note Payable [Member] |  |  |  |  |  |  |
Short-Term Debt [Line Items] |  |  |  |  |  |  |
Debt instrument, convertible, beneficial conversion feature |  |  |  |  | $ 4,700 |  |

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