Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Purchased Intangibles (Narrative) (Details)

v3.21.1
Goodwill and Purchased Intangibles (Narrative) (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]      
Goodwill $ 496,352   $ 496,352
Amortization expense $ 36,004 $ 37,677  
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