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Related Party Transactions (Details) $ / shares in Units, $ in Thousands |  |  |  |  |  | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 12, 2021 USD ($) $ / shares shares | Apr. 20, 2021 USD ($) | Mar. 24, 2021 USD ($) | Nov. 06, 2020 USD ($) $ / shares shares | Dec. 24, 2019 USD ($) $ / shares shares | Jun. 30, 2020 USD ($) shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Mar. 26, 2021 ft²
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from related party promissory notes |  |  |  |  |  |  | $ 110,000 | $ 0 |
Imputed interest expense on promissory note payable to a related party |  |  |  |  |  |  | 103 |  |
Additional Paid-In Capital |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Imputed interest expense on promissory note payable to a related party |  |  |  |  |  |  | 103 |  |
Chief Executive Officer | Initial Purchase Agreement |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from related party promissory notes |  |  | $ 55,000 |  |  |  |  |  |
Notes payable |  |  | $ 55,000 |  |  |  |  |  |
Notes payable, estimated interest rate |  |  | 2.40% |  |  |  |  |  |
Notes payable, maturity triggering event, public offering proceeds threshold |  |  | $ 55,000 |  |  |  |  |  |
Notes payable, maximum term |  |  | 13 months |  |  |  |  |  |
Chief Executive Officer | Initial Purchase Agreement | Additional Paid-In Capital |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Imputed interest expense on promissory note payable to a related party |  |  |  |  |  |  | 103 |  |
Chief Executive Officer | Initial Purchase Agreement | 10 year US Treasury rate |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Notes payable, basis spread on variable rate |  |  | 150.00% |  |  |  |  |  |
Chief Executive Officer | Second Purchase Agreement |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from related party promissory notes |  | $ 55,000 |  |  |  |  |  |  |
Notes payable |  | $ 55,000 |  |  |  |  |  |  |
Notes payable, estimated interest rate |  | 2.40% |  |  |  |  |  |  |
Chief Executive Officer | Second Purchase Agreement | 10 year US Treasury rate |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Notes payable, basis spread on variable rate |  | 150.00% |  |  |  |  |  |  |
Beneficial owner | Assignment Agreement |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Warrants vested (in shares) | shares |  |  |  |  |  | 489,815 |  |  |
Affiliated entity |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Area of premises subleased | ft² |  |  |  |  |  |  |  |  | 4,500
Payments to related party |  |  |  |  |  |  | $ 556 |  |
Affiliated entity | Consulting Agreement |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Number of common stock shares into which warrants may be converted (in shares) | shares |  |  |  |  | 3,358,732 |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  | $ 1.44 |  |  |  |
Monthly expense from related party |  |  |  |  | $ 75 |  |  |  |
Warrants quarterly vesting period |  |  |  |  | 3 years |  |  |  |
Affiliated entity | Consultancy fees |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Expenses from related party transactions |  |  |  |  |  | $ 470 |  |  |
Affiliated entity | Warrant vesting expense |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Expenses from related party transactions |  |  |  |  |  | $ 512 |  |  |
Director | Assignment Agreement |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Warrants vested (in shares) | shares |  |  |  |  |  | 69,972 |  |  |
Private placement |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Consideration received on sale of stock |  |  |  | $ 50,000 | $ 50,000 |  |  |  |
Shares issued (in shares) | shares |  |  |  | 14,970,060 | 35,075,690 |  |  |  |
Sale of stock price (in dollars per share) | $ / shares |  |  |  | $ 3.34 | $ 1.43 |  |  |  |
Number of common stock shares into which warrants may be converted (in shares) | shares |  |  |  |  | 5,261,350 |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  | $ 1.58 |  |  |  |
Private placement | Chief Executive Officer |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock price (in dollars per share) | $ / shares |  |  |  |  | $ 1.43 |  |  |  |
Number of shares of common stock subscribed (in shares) | shares |  |  |  | 14,071,856 | 33,231,410 |  |  |  |
Number of common stock shares into which warrants may be converted (in shares) | shares |  |  |  |  | 4,984,711 |  |  |  |
Private placement | Former Chief Executive Officer |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock price (in dollars per share) | $ / shares |  |  |  |  | $ 1.43 |  |  |  |
Number of shares of common stock subscribed (in shares) | shares |  |  |  |  | 90,495 |  |  |  |
Number of common stock shares into which warrants may be converted (in shares) | shares |  |  |  |  | 13,574 |  |  |  |
Private placement | Beneficial owner |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Number of shares of common stock subscribed (in shares) | shares |  |  |  | 149,701 |  |  |  |  |
Rights Offering |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Consideration received on sale of stock | $ 75,000 |  |  |  |  |  |  |  |
Shares issued (in shares) | shares | 14,312,976 |  |  |  |  |  |  |  |
Sale of stock price (in dollars per share) | $ / shares | $ 5.24 |  |  |  |  |  |  |  |
Rights Offering | Chief Executive Officer |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Shares issued (in shares) | shares | 11,365,921 |  |  |  |  |  |  |  |
Sale of stock price (in dollars per share) | $ / shares | $ 5.24 |  |  |  |  |  |  |  |
Rights Offering | Chief Operations Officer |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Shares issued (in shares) | shares | 389,977 |  |  |  |  |  |  |  |
Sale of stock price (in dollars per share) | $ / shares | $ 5.24 |  |  |  |  |  |  |  |

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