Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Purchased Intangibles (Narrative) (Details)

v3.8.0.1
Goodwill and Purchased Intangibles (Narrative) (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Jan. 01, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]        
Goodwill $ 803,118   $ 803,118 $ 803,118
Amortization expense $ 10,669 $ 10,751    
Maximum [Member]        
Finite-Lived Intangible Assets [Line Items]        
Estimated useful lives 20 years      
Minimum [Member]        
Finite-Lived Intangible Assets [Line Items]        
Estimated useful lives 1 year