Quarterly report pursuant to Section 13 or 15(d)

3. Goodwill and Purchased Intangible Assets (Details)

v3.20.1
3. Goodwill and Purchased Intangible Assets (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]      
Goodwill $ 496,352   $ 496,352
Amortization expense $ 37,677 $ 37,769  
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