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Description of Business and Summary of Significant Accounting Policies and Practices - Computation of Net Loss Per Share Basic and Diluted (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Numerator:    
Net loss applicable to common stockholders $ (8,245) $ (4,390)
Denominator:    
Basic net income (loss) per Class A and Class B share applicable to common stockholders $ (0.19) $ (0.10)
Diluted net income (loss) per Class A and Class B share applicable to common stockholders $ (0.19) $ (0.10)
Class A    
Numerator:    
Net loss applicable to common stockholders $ (889) $ (466)
Diluted net loss applicable to common stockholders: $ (889) $ (466)
Denominator:    
Weighted average number of shares outstanding used to calculate basic net loss per share 4,661 4,661
Weighted average number of shares outstanding used to calculate diluted net loss per share 4,661 4,661
Basic net income (loss) per Class A and Class B share applicable to common stockholders $ (0.19) $ (0.10)
Diluted net income (loss) per Class A and Class B share applicable to common stockholders $ (0.19) $ (0.10)
Class B    
Numerator:    
Net loss applicable to common stockholders $ (7,356) $ (3,924)
Reallocation of net income (loss) for Class A shares as a result of conversion of Class A to Class B shares (889) (466)
Diluted net loss applicable to common stockholders: $ (8,245) $ (4,390)
Denominator:    
Weighted average number of shares outstanding used to calculate basic net loss per share 38,560 39,256
Conversion of Class A to Class B common shares outstanding 4,661 4,661
Weighted average number of shares outstanding used to calculate diluted net loss per share 43,221 43,917
Basic net income (loss) per Class A and Class B share applicable to common stockholders $ (0.19) $ (0.10)
Diluted net income (loss) per Class A and Class B share applicable to common stockholders $ (0.19) $ (0.10)