Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v3.21.2
Related Party Transactions - Additional Information (Detail) - USD ($)
3 Months Ended 8 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Jun. 28, 2017
Sep. 30, 2021
Sep. 30, 2020
Mar. 31, 2019
Related Party Transaction [Line Items]            
Class of warrant or right, number of securities called by warrants or rights           1,666,666
Cost of services revenue         $ 126,539  
Dialog Semiconductor Plc [Member]            
Related Party Transaction [Line Items]            
Equity method investment, ownership percentage 2.80%     2.80%    
Warrants outstanding 0     0    
Contract Services [Member] | Dialog Semiconductor Plc [Member]            
Related Party Transaction [Line Items]            
Revenue $ 0 $ 0   $ 0 130,000  
Cost of services revenue 0 0   0 126,539  
Chip Development [Member] | Dialog Semiconductor Plc [Member]            
Related Party Transaction [Line Items]            
Cost of services revenue 225,000 0   408,000 0  
Strategic Alliance Agreement [Member] | Royalty Revenue [Member]            
Related Party Transaction [Line Items]            
Revenue $ 0 $ 0   $ 0 $ 0  
Private Placements [Member] | Dialog Semiconductor Plc [Member]            
Related Party Transaction [Line Items]            
Stock issued during period, shares, new issues     1,739,691      
Private Placements [Member] | Warrant Issued to Private Investors [Member] | Dialog Semiconductor Plc [Member]            
Related Party Transaction [Line Items]            
Class of warrant or right, number of securities called by warrants or rights     1,417,565