Annual report pursuant to Section 13 and 15(d)

Goodwill and Purchased Identifiable Intangible Assets (Details 3)

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Goodwill and Purchased Identifiable Intangible Assets (Details 3) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]      
2018 $ 647,257    
2019 609,119    
2020 441,897    
2021 409,952    
2022 397,036    
Thereafter 381,833    
Finite-Lived Intangible Assets, Net $ 2,887,094 $ 5,780,213 $ 0