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Stockholders' Equity - Additional Information (Details)
 1 Months Ended 12 Months Ended
Jun. 24, 2020
$ / shares
shares
Oct. 10, 2017
shares
Dec. 31, 2015
shares
Dec. 31, 2011
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Aug. 12, 2021
shares
Jun. 21, 2021
$ / shares
shares
May 19, 2021
shares
May 18, 2021
shares
Jun. 23, 2020
shares
Apr. 30, 2019
$ / shares
Dec. 18, 2017
shares
Class Of Stock [Line Items]                          
Preferred stock, shares authorized         10,000,000                
Common stock, shares authorized         50,000,000 50,000,000              
Common stock, par value | $ / shares         $ 0.0001 $ 0.0001              
Common stock voting rights         one vote for each share                
Preferred stock, shares outstanding         0                
Unvested common stock options, net of estimated forfeitures | $         $ 10,232                
Unearned stock-based compensation expected to be recognized         11 months 4 days                
April 2019 Notes                          
Class Of Stock [Line Items]                          
Warrants exercise price | $ / shares                       $ 2.15  
April 2019 Notes | Exercise Price                          
Class Of Stock [Line Items]                          
Warrants exercise price | $ / shares         $ 2.15                
Restricted Stock Units                          
Class Of Stock [Line Items]                          
Number of shares, granted         432,196 554,251              
Weighted average exercise price | $ / shares         $ 5.76 $ 2.63              
Unvested common stock options, net of estimated forfeitures | $         $ 1,972,787                
Unearned stock-based compensation expected to be recognized         2 years 3 days                
Number of shares issued during the period         254,954 123,440              
Number of shares retained for income tax purposes         143,239 27,811              
Incentive Stock Options                          
Class Of Stock [Line Items]                          
Stock price | $ / shares         $ 5.50                
Multiplier for calculating share vested on determined date         1,177.52                
Cashless Exercise of Stock Options                          
Class Of Stock [Line Items]                          
Number of common stock issued           240,381              
2017 Equity Incentive Plan | Restricted Stock Units                          
Class Of Stock [Line Items]                          
Vesting period         3 years                
Common Stock | 2017 Equity Incentive Plan                          
Class Of Stock [Line Items]                          
Shares available for grant         1,105,270                
Shares authorized for issuance             1,500,000   3,000,000 1,500,000      
Common Stock | Amendment to 2017 Equity Incentive Plan                          
Class Of Stock [Line Items]                          
Shares authorized for issuance 1,000,000                   500,000    
2011 Plan | Common Stock                          
Class Of Stock [Line Items]                          
Shares available for grant           240,000              
2015 Plan | Common Stock                          
Class Of Stock [Line Items]                          
Shares available for grant           790,000              
Stock Options                          
Class Of Stock [Line Items]                          
Number of common stock issued         280,996 314,236              
Proceeds from stock options exercised | $         $ 294,390 $ 86,892              
Maximum                          
Class Of Stock [Line Items]                          
Ownership interest percentage         10.00%                
Options expiration period date of grant         10 years                
Maximum | Common Stock | 2017 Equity Incentive Plan                          
Class Of Stock [Line Items]                          
Shares authorized for issuance                         1,500,000
Maximum | 2011 Plan | Common Stock                          
Class Of Stock [Line Items]                          
Number of shares granted       1,500,000                  
Maximum | 2015 Plan | Common Stock                          
Class Of Stock [Line Items]                          
Number of shares granted     1,500,000                    
Minimum                          
Class Of Stock [Line Items]                          
Fair market value of common stock on date of grant         110.00%                
Options expiration period date of grant         5 years                
Board of Directors | 2011 Plan | Common Stock                          
Class Of Stock [Line Items]                          
Shares available for grant   0                      
Stock options, termination date   Oct. 10, 2017                      
Board of Directors | 2015 Plan | Common Stock                          
Class Of Stock [Line Items]                          
Shares available for grant   0                      
Stock options, termination date   Oct. 10, 2017                      
Mr. Raun | Restricted Stock Units                          
Class Of Stock [Line Items]                          
Number of shares, granted 412,125                        
Vesting period 3 years                        
Vesting percentage 33.33%                        
Mr. Raun | Incentive Stock Options                          
Class Of Stock [Line Items]                          
Number of shares granted 412,125                        
Weighted average exercise price | $ / shares $ 2.14                        
Employees, Officers, Directors, Consultants and Advisors                          
Class Of Stock [Line Items]                          
Common stock, par value | $ / shares               $ 0.0001          
Employees, Officers, Directors, Consultants and Advisors | Common Stock                          
Class Of Stock [Line Items]                          
Shares available for grant               3,543,114