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Stock-Based Compensation - Additional Information (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 01, 2014 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 08, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense |  | $ 3,383,000 | $ 1,547,000 | $ 1,441,000 |
Shares issued for exercise of options and warrants (in shares) |  | 120,000 | 241,214 |  |
Cashless options, exercises in period (in shares) |  | 0 |  |  |
Options outstanding (term) |  | 3 years 9 months | 3 years 5 months 1 day |  |
Weighted average exercise price (in dollars per share) |  | $ 13.25 | $ 9.22 |  |
Total share-based compensation expense |  | $ 3,383,000 | $ 1,547,000 | 1,442,000 |
Unrecognized compensation expense |  | $ 7,100,000 |  |  |
APC |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Incentive consideration per provider | $ 25,000 |  |  |  |
Incentive consideration preferred provider | $ 15,000 |  |  |  |
Fair value assumptions. exercise price (in dollars per share) | $ 0.17 |  |  |  |
NMM |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value assumptions. exercise price (in dollars per share) | $ 2.44 |  |  |  |
Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options exercisable weighted average exercise price (in usd per share) |  | $ 2.10 | $ 1.50 |  |
Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options exercisable weighted average exercise price (in usd per share) |  | $ 5.00 | $ 10.00 |  |
APC Stock Option |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Purchase price adjustment from Merger |  | $ 300,000 | $ 1,500,000 |  |
Board Members |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options, grants in period (in shares) |  | 191,742 |  |  |
Board Members | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Weighted average exercise price (in dollars per share) |  | $ 18.20 |  |  |
Board Members | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Weighted average exercise price (in dollars per share) |  | $ 18.41 |  |  |
Executives |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options, grants in period (in shares) |  | 59,004 |  |  |
Weighted average exercise price (in dollars per share) |  | $ 17.78 |  |  |
Restricted stock awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock awards granted (in shares) |  | 97,447 |  |  |
Weighted average grant date fair value (in dollars per share) |  | $ 17.58 |  |  |
Grant date fair value of restricted stock to be recognized straight-line |  | $ 1,600,000 |  |  |
Vesting period |  | 3 years |  |  |
Grant date fair value, forfeited (in dollars per share) |  | $ 100,000 |  |  |
Forfeited (in shares) |  | 7,394 |  |  |
Restricted stock awards | Executives |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Restricted stock awards granted (in shares) |  | 130,484 |  |  |
Weighted average grant date fair value (in dollars per share) |  | $ 17.78 |  |  |
Vesting period |  | 3 years |  |  |
Grant date fair value, forfeited |  | $ 2,300,000 |  |  |
Stock options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total share-based compensation expense |  | $ 1,763,000 | $ 688,000 | 0 |
Stock options | Board Members and Directors |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period |  | 5 years | 5 years |  |
Stock Awards and Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total share-based compensation expense |  | $ 1,620,000 | $ 252,000 | $ 632,000 |
2013 Equity Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized (in shares) |  |  |  |  | 500,000
2015 Equity Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of shares authorized (in shares) |  |  |  |  | 1,500,000
Number of share available for grant (in shares) |  | 100,000 | 500,000 | 900,000 |

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