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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Summary of Option Activity

A summary of option activity under the Plan during the three and nine months ended September 30, 2022, is as follows:

  

   Shares  

Weighted-Average
Exercise Price

per Share

   Weighted-Average
Remaining
Contractual Term
   Aggregate
Intrinsic
Value
 
Outstanding at December 31, 2021   523,285   $6.00    9.94      
Grants   342,999   $1.82    9.91      
Exercised                   
Forfeitures or expirations                   
Outstanding at March 31, 2022   866,284   $4.35    9.78   $182,900 
Grants   17,517   $1.46    7.78      
Exercised                   
Forfeitures or expirations                   
Outstanding at June 30, 2022   883,801   $4.29    9.49   $24,800 
Grants   27,032   $1.29    9.95      
Exercised                   
Forfeitures or expirations   (29,721)  $3.82           
Outstanding at September 30, 2022   881,112   $4.21    9.26   $- 
                     
Options exercisable as of September 30, 2022   26,049                
Options unvested as of September 30, 2022   855,063                
Schedule of Fair Value Assumption

The Company’s stock options issued qualify for equity accounting treatment under ASC 718 and are measured at fair value as of their grant date accordingly. The fair value of the options were estimated using a Black-Scholes model. The assumptions that the Company used to estimate the grant-date fair value of stock options granted to employees during the nine-month period ending September 30, 2022, were as follows, shown on a weighted average basis:

  

Risk-free interest rate   1.71%
Weighted-average expected term (in years)   6.02 
Expected volatility   1.12 
Expected dividend yield   0%