XML 83 R74.htm IDEA: XBRL DOCUMENT v3.25.1
Stock-Based Compensation and Employee Stock Purchase Program - Additional Information (Detail)
 12 Months Ended
Jun. 25, 2024
shares
Feb. 02, 2022
shares
May 20, 2015
shares
May 14, 2015
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
IncentivePlan
$ / shares
shares
Dec. 31, 2022
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of equity incentive plans | IncentivePlan           2  
Shares Subject to Outstanding, Options Granted         158,000 26,021  
Total number of options outstanding         205,475 80,078 60,002
Unrecognized compensation cost related to unvested stock-based compensation grants | $         $ 317,000    
Weighted-average remaining recognition period         1 year 2 months 12 days    
Stock-based compensation | $         $ 512,000 $ 717,000  
Weighted-average estimated grant-date fair value of stock options granted | $ / shares         $ 2.33 $ 5.72  
2015 Employee Stock Purchase Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total number of shares reserved for issuance under plan         3,208    
Stock-based compensation | $         $ 7,000 $ 6,000  
Percentage in payroll deductions to acquire shares of common stock       15.00%      
Purchase plan offering period       6 months      
Employees are able to purchase company's common stock on first trading day of offering period, percentage       85.00%      
Issuance of common stock pursuant to employee stock purchase plan         8,071    
First offering period, start date       May 14, 2015      
First offering period, end date       Feb. 01, 2016      
Inducement Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total number of options outstanding         199 8,366  
Inducement Stock Option [Member] | Stanley Jacot, Jr. [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares Subject to Outstanding, Options Granted   7,902          
2015 Omnibus Equity Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Terms under the plan         The 2015 Plan became effective upon the Company’s IPO in May 2015 and all shares that were reserved, but not issued, under the 2006 Plan were assumed by the 2015 Plan. Upon effectiveness, the 2015 Plan had 3,860 shares of common stock reserved for future issuance, which included 259 that were transferred to and assumed by the 2015 Plan. The 2015 Plan provides for automatic annual increases in shares available for grant. In addition, shares subject to awards under the 2006 Plan that are forfeited or canceled will be added to the 2015 Plan. The maximum number of shares that may be awarded to any individual employee, including our directors and officers, during any calendar year was 9,375 shares.    
Total number of shares reserved for issuance under plan     3,860   338,310    
Options vesting period     4 years        
Additional shares authorized for issuance under the plan 200,000            
Number of shares awarded o individual employee 50,000   9,375        
Common stock available for future grant         133,074    
Total number of options outstanding         205,236 71,609  
2006 Stock Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total number of shares reserved for issuance under plan     259        
Total number of options outstanding         40 102  
Maximum [Member] | 2015 Omnibus Equity Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options exercisable period     10 years