XML 78 R58.htm IDEA: XBRL DOCUMENT v3.22.4
Stock-Based Compensation - Additional Information (Detail)
1 Months Ended 12 Months Ended
Jan. 01, 2023
shares
Mar. 29, 2019
shares
Nov. 30, 2018
installment
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Nov. 29, 2018
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Number of Stock Options, Granted       1,473,427    
Issuance of common stock from Employee Stock Purchase Plan | $       $ 181,000 $ 225,000  
Stock-based compensation expense | $       $ 8,101,000 $ 5,519,000  
Stock Options [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Weighted-average grant date fair value of stock options granted | $ / shares       $ 7.07 $ 11.79  
Weighted-average Intrinsic Value, Exercised | $       $ 4,400,000 $ 700,000  
Fair value of award vested | $       6,800,000 4,700,000  
Unrecognized compensation cost, stock options | $       $ 11,700,000    
Unrecognized stock-based compensation expense, period for recognition       2 years 7 months 6 days    
Restricted Stock [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Unrestricted common stock       41,572    
Common stock withheld to satisfy tax withholding obligations.       32,428    
Unrecognized compensation expense | $       $ 0    
Restricted Stock [Member] | November 30, 2018 [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Fair value of restricted shares that vested | $       $ 700,000 1,000,000.0  
Restricted Stock Units [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Unrecognized stock-based compensation expense, period for recognition       2 years 9 months 18 days    
Restricted stock authorized and granted       285,000    
Weighted average grant date fair value of restricted stock award | $ / shares       $ 7.11    
Unrestricted common stock       41,123    
Fair value of restricted shares that vested | $       $ 600,000 $ 100,000  
Common stock withheld to satisfy tax withholding obligations.       19,905    
Unrecognized compensation expense | $       $ 2,800,000    
Restricted stock vesting period       4 years    
Executive Officer [Member] | Restricted Stock [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Restricted stock authorized and granted     322,907      
Weighted average grant date fair value of restricted stock award | $ / shares     $ 3.59      
Share-based compensation arrangement by share-based payment award, shares vesting date     Nov. 30, 2022      
Restricted stock vesting period     4 years      
Executive Officer [Member] | Restricted Stock [Member] | One Year Anniversary [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     25.00%      
Executive Officer [Member] | Restricted Stock [Member] | 36 Substantially Equal Monthly Installments            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Share-based compensation arrangement by share-based payment award, award vesting rights, percentage     75.00%      
Number of substantially equal monthly installments | installment     36      
Common Stock [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Number of Stock Options, Granted       1,473,427    
Unrestricted common stock       8,695 (28,850)  
2001 Employee Stock Option Plan [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Number of Stock Options, Granted       0    
2007 Long Term Incentive Plan [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Number of Stock Options, Granted       0    
2017 Omnibus Incentive Plan [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Shares reserved for future issuance, description       The aggregate share reserve will be increased on January 1 of each year commencing in 2018 and ending on and including January 1, 2027 up to an amount equal to the lowest of (i) 4% of the total number of shares of common stock outstanding on a fully diluted basis as of December 31 of the immediately preceding calendar year, and (ii) such number of shares of common stock, if any, determined by the Company’s board of directors.    
Percentage of additional shares from common stock available for stock-based compensation       4.00%    
2017 Omnibus Incentive Plan [Member] | Subsequent Event [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Number of additional shares authorized 2,160,537          
2017 Omnibus Incentive Plan [Member] | Minimum [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock reserved for future issuance       1,500,000    
2017 Omnibus Incentive Plan [Member] | Maximum [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock reserved for future issuance       5,000,000    
2017 Omnibus Incentive Plan [Member] | Common Stock [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock reserved for future issuance       1,368,689    
2017 Omnibus Incentive Plan [Member] | Common Stock [Member] | Maximum [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Stock granted, shares       800,000    
Stock granted value | $       $ 5,000,000    
2017 Omnibus Incentive Plan [Member] | Common Stock [Member] | Maximum [Member] | Director [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Stock granted, shares       500,000    
2018 Inducement Grant Plan [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock reserved for future issuance           2,000,000
2018 Inducement Grant Plan [Member] | Common Stock [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock reserved for future issuance       1,309,275    
2019 Employee Stock Purchase Plan [Member]            
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]            
Common stock reserved for future issuance   403,500   260,344    
Percent of payroll deductions   10.00%        
Percentage of discount from fair market value of common stock on first or last trading day of offering period   85.00%        
Stock purchased by employee       26,395    
Issuance of common stock from Employee Stock Purchase Plan | $       $ 200,000    
Stock-based compensation expense | $       $ 300,000 $ 300,000