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v3.22.1

Subsequent Events (Details) | Mar. 31, 2022 ft² | Mar. 06, 2022 USD ($) $ / shares shares | Jan. 03, 2022 USD ($) Employee | Mar. 05, 2022 USD ($) | Dec. 31, 2021 USD ($) ft² | Dec. 31, 2020 USD ($)
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Lease Assignment [Abstract] |  |  |  |  |  |
Security deposit |  |  |  |  | $ 522,000 | $ 453,000
New Lease Agreement [Abstract] |  |  |  |  |  |
Operating lease area | ft² |  |  |  |  | 2,700 |
Subsequent Event [Member] |  |  |  |  |  |
Reduction in Force [Abstract] |  |  |  |  |  |
Number of employees terminated in reduction in force | Employee |  |  | 8 |  |  |
Percentage of employees terminated in reduction in force |  |  | 53.00% |  |  |
Severance and termination-related costs |  |  | $ 500,000 |  |  |
Lease Assignment [Abstract] |  |  |  |  |  |
Commitment to purchase equipment |  |  |  | $ 50,000 |  |
Unamortized leasehold improvements |  |  |  | 50,000 |  |
Security deposit |  |  |  | $ 63,000 |  |
New Lease Agreement [Abstract] |  |  |  |  |  |
Operating lease area | ft² | 5,200 |  |  |  |  |
Lease commencement term | 62 months |  |  |  |  |
Base rent (per square foot) | ft² | 6.35 |  |  |  |  |
Percentage of increase in base rent on each year | 3.00% |  |  |  |  |
Extended lease term | 5 years |  |  |  |  |
Common Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |
Private Placement of Equity [Abstract] |  |  |  |  |  |
Warrant exercise price (in dollars per share) | $ / shares |  | $ 1.91 |  |  |  |
Percentage of warrants exercisable |  | 4.99% |  |  |  |
Warrant exercisable term |  | 6 months |  |  |  |
Pre-funded Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |
Private Placement of Equity [Abstract] |  |  |  |  |  |
Warrant exercise price (in dollars per share) | $ / shares |  | $ 0.005 |  |  |  |
Percentage of warrants exercisable |  | 9.99% |  |  |  |
PIPE Investor [Member] | Subsequent Event [Member] |  |  |  |  |  |
Private Placement of Equity [Abstract] |  |  |  |  |  |
Private placement (in shares) | shares |  | 6,857,000 |  |  |  |
Aggregate gross purchase price |  | $ 12,000,000.0 |  |  |  |
PIPE Investor [Member] | Common Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |
Private Placement of Equity [Abstract] |  |  |  |  |  |
Number of common stock (in shares) | shares |  | 1 |  |  |  |
Warrant expiration term |  | 5 years 6 months |  |  |  |
PIPE Investor [Member] | Pre-funded Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |
Private Placement of Equity [Abstract] |  |  |  |  |  |
Number of common stock (in shares) | shares |  | 1 |  |  |  |

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