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Gain on Sale of Software Products - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2020
Jun. 30, 2019
Dec. 31, 2020
Dec. 31, 2019
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]        
Proceeds from sale of software products     $ 367 $ 370
Gain on sale of software products     711 $ 483
Asset Purchase Agreement [Member] | Moho and Motion Artist Animation Software Product [Member] | Lost Marble LLC [Member]        
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]        
Consideration for sale of asset $ 750   $ 750  
Proceeds from sale of software products $ 325      
Remaining consideration payment period 3 years      
Gain on sale of software products $ 711      
Asset Purchase Agreement [Member] | Poser 3D Software Product [Member] | Bondware, Inc. [Member]        
Income Statement Balance Sheet and Additional Disclosures by Disposal Groups Including Discontinued Operations [Line Items]        
Consideration for sale of asset   $ 500    
Proceeds from sale of software products   $ 350    
Remaining consideration payment period   3 years    
Gain on sale of software products   $ 483