Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Purchased Intangibles (Narrative) (Details)

v3.21.2
Goodwill and Purchased Intangibles (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jun. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]            
Goodwill $ 496,352   $ 496,352   $ 496,352 $ 496,352
Amortization expense $ 35,738 $ 37,758 $ 107,478 $ 113,202    
Minimum [Member]            
Finite-Lived Intangible Assets [Line Items]            
Estimated useful lives     1 year      
Maximum [Member]            
Finite-Lived Intangible Assets [Line Items]            
Estimated useful lives     20 years