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v3.21.1

Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional paid-in capital | Accumulated deficit
--- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2018 |  | 7,592,911 |  |
Beginning Balance at Dec. 31, 2018 | $ 46,368 | $ 1 | $ 54,791 | $ (8,424)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Shares issued related to vested restricted stock units (in shares) |  | 96,047 |  |
Shares issued related to vested restricted stock units | 0 |  |  |
Stock-based compensation | 1,766 |  | 1,766 |
Net income (loss) | (1,775) |  |  | (1,775)
Ending Balance (in shares) at Dec. 31, 2019 |  | 7,688,958 |  |
Ending Balance at Dec. 31, 2019 | 46,870 | $ 1 | 56,557 | (9,688)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Shares issued related to vested restricted stock units (in shares) |  | 206,354 |  |
Shares issued related to vested restricted stock units | 0 |  |  |
Stock-based compensation | 1,068 |  | 1,068 |
Tax withholding related to vested restricted stock units | (110) |  | (110) |
Proceeds related to employee stock purchase plan | 97 |  | 97 |
Shares issued related to employee stock purchase plan (in shares) |  | 30,825 |  |
Shares issued related to employee stock purchase plan | 0 |  |  |
Net income (loss) | 5,807 |  |  | 5,807
Ending Balance (in shares) at Dec. 31, 2020 |  | 7,926,137 |  |
Ending Balance at Dec. 31, 2020 | $ 53,732 | $ 1 | $ 57,612 | $ (3,881)

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