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Stockholders' Equity - Narrative (Details) $ / shares in Units, $ in Thousands |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 26, 2021 USD ($) | Mar. 25, 2021 shares | Feb. 28, 2021 shares | Nov. 21, 2017 shares | Apr. 30, 2021 USD ($) $ / shares shares | Mar. 31, 2021 shares | Aug. 31, 2021 USD ($) shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Nov. 21, 2021 shares | Nov. 21, 2020 shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  |  |  | 10,000,000 | 10,000,000 |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 0.00001 | $ 0.00001 |  |
Preferred stock, shares issued (in shares) |  |  |  |  |  |  |  | 0 | 0 |  |
Preferred stock, shares outstanding (in shares) |  |  |  |  |  |  |  | 0 | 0 |  |
Common stock, shares authorized (in shares) |  |  |  |  |  |  |  | 100,000,000 | 100,000,000 |  |
Common stock, par value (in dollars per share) | $ / shares |  |  |  |  |  |  |  | $ 0.00001 | $ 0.00001 |  |
Common stock, shares, issued (in shares) |  |  |  |  |  |  |  | 55,576,988 | 33,749,228 |  |
Common stock, shares, outstanding (in shares) |  |  |  |  |  |  |  | 55,576,988 | 33,749,228 |  |
Issuance of common stock | $ |  |  |  |  |  |  |  | $ 655 | $ 0 |  |
Maximum number of shares authorized under the plan (in shares) |  |  |  | 4,361,291 |  |  |  |  |  |  |
Annual increase percentage of maximum shares outstanding (equal to) |  |  |  | 4.00% |  |  |  |  |  |  |
Additional shares reserved for issuance (in shares) |  |  |  |  |  |  |  |  |  | 2,223,080 | 1,349,969
Shares reserved for issuance (in shares) |  |  |  |  |  |  |  | 3,361,247 |  |  |
Intrinsic Value | $ |  |  |  |  |  |  |  | $ 200 |  |  |
Stock-based compensation expense | $ |  |  |  |  |  |  |  | 9,576 | 10,584 |  |
Capitalized share-based compensation expense | $ |  |  |  |  |  |  |  | $ 63 | $ 21 |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock in connection with litigation settlement (in shares) |  |  | 6,762,652 |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  |  |  | 643,872 | 186,563 |  |
Additional Paid In Capital |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock | $ |  |  |  |  |  |  |  | $ 655 | $ 0 |  |
Daewoong Convertible Note | Convertible Debt | Common Stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Conversion of common shares (in shares) |  | 3,136,869 |  |  |  | 3,136,869 |  |  |  |  |
A T M Sales Agreement |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) |  |  |  |  |  |  | 934,367 |  |  |  |
Aggregate net proceeds from stock offering | $ |  |  |  |  |  |  | $ 10,910 |  |  |  |
Maximum consideration receivable | $ | $ 75 |  |  |  |  |  |  |  |  |  |
Sale of stock, commission payment upon gross proceeds | 3.00% |  |  |  |  |  |  |  |  |  |
Issuance of common stock | $ |  |  |  |  |  |  |  | 10,910 |  |  |
Aggregate net proceeds from stock offering | $ |  |  |  |  |  |  |  | $ 337 |  |  |
A T M Sales Agreement | Common Stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  |  |  | 934,367 |  |  |
A T M Sales Agreement | Additional Paid In Capital |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock | $ |  |  |  |  |  |  |  | $ 10,910 |  |  |
Public Stock Offering |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) |  |  |  |  | 10,350,000 |  |  |  |  |  |
Offering price per share (in dollar per share) | $ / shares |  |  |  |  | $ 9.50 |  |  |  |  |  |
Aggregate net proceeds from stock offering | $ |  |  |  |  | $ 92,426 |  |  |  |  |  |
Underwriters Option |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) |  |  |  |  | 1,350,000 |  |  |  |  |  |
RSUs |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock units granted (in shares) |  |  |  |  |  |  |  | 1,850,243 | 1,301,439 |  |
Stock-based compensation expense | $ |  |  |  |  |  |  |  | $ 4,274 | $ 2,615 |  |
Weighted average period for unrecognized costs to be recognized |  |  |  |  |  |  |  | 2 years 10 months 13 days |  |  |
Total fair value of awards vested | $ |  |  |  |  |  |  |  | $ 5,892 | $ 1,980 |  |
Unrecognized costs other than options | $ |  |  |  |  |  |  |  | $ 11,768 |  |  |
RSUs Performance Conditions |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock units granted (in shares) |  |  |  |  |  |  |  | 0 | 0 |  |
RSUs Market Conditions |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restricted stock units granted (in shares) |  |  |  |  |  |  |  | 0 | 0 |  |
Common stock options |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Contractual term of options |  |  |  |  |  |  |  | 10 years |  |  |
Weighted average expected term of options |  |  |  |  |  |  |  | 6 years |  |  |
Expected dividend yield rate of options |  |  |  |  |  |  |  | 0.00% | 0.00% |  |
Exercised (in shares) |  |  |  |  |  |  |  | (99,435) | 0 |  |
Stock-based compensation expense | $ |  |  |  |  |  |  |  | $ 5,302 | $ 7,968 |  |
Unrecognized stock option costs | $ |  |  |  |  |  |  |  | $ 6,358 |  |  |
Weighted average period for unrecognized costs to be recognized |  |  |  |  |  |  |  | 1 year 8 months 4 days |  |  |
Minimum | RSUs |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  | 1 year |  |  |
Maximum | RSUs |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Award vesting period |  |  |  |  |  |  |  | 4 years |  |  |

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