Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.21.2
Income Taxes - Additional Information (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Dec. 31, 2020
TaxableYear
Dec. 31, 2019
TaxableYear
Dec. 31, 2018
TaxableYear
Income Taxes [Line Items]              
Income tax expense (benefit) $ 766,000 $ (263,000) $ (6,608,000) $ (1,165,000)      
Discrete income tax expense (benefit)     $ (959,000)        
Percentage of taxable income         100.00%    
CARES act of 2020 aid carrybacks, number of preceding taxable years to generate refund of previously paid income taxes | TaxableYear         5 5 5
Open tax year     2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021        
MGage Europe Ltd              
Income Taxes [Line Items]              
Valuation allowance of deferred tax assets 5,800,000   $ 5,800,000        
Valuation allowance of deferred tax asset increase (decrease) 551,000            
Net valuation allowance 5,300,000   5,300,000        
Bandyer              
Income Taxes [Line Items]              
Valuation allowance of deferred tax assets 320,000   320,000        
Solutions Infini              
Income Taxes [Line Items]              
Undistributed earnings and profits by foreign subsidiary 4,900,000   4,900,000        
Undistributed profits 0   0        
Expected tax expense due to undistributed earnings $ 737,000   $ 737,000