Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) - USD ($)
1 Months Ended
Apr. 30, 2020
Aug. 31, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Loss Contingencies [Line Items]          
Commitment for future lease payments for leases that do not yet meet the criteria of a ROU asset or ROU liability     $ 137,000    
Contingent consideration, liability     0 $ 6,059,000  
Undisclosed Name of Acquiree Two          
Loss Contingencies [Line Items]          
Contingent consideration, liability, revenue earn-outs, payment period   5 years      
Contingent consideration, liability, fair value   $ 555,000 678,000 678,000 $ 555,000
Initial cash payment   $ 0      
Contingent consideration, liability         2,000,000
Undisclosed Name Of Acquiree Three          
Loss Contingencies [Line Items]          
Contingent consideration, liability     59,000 $ 378,000 $ 363,000
Undisclosed Name Of Acquiree Four          
Loss Contingencies [Line Items]          
Contingent consideration, liability, revenue earn-outs, payment period 5 years        
Contingent consideration, liability, fair value $ 0   $ 0