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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