XML 52 R41.htm IDEA: XBRL DOCUMENT v3.19.1
Balance Sheet Components - Estimated Future Amortization Expense (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]    
Total $ 31,288,889 $ 31,710,556
Trademarks and Developed technology rights    
Finite-Lived Intangible Assets [Line Items]    
2020 1,265,000  
2021 1,686,667  
2022 1,686,667  
2023 1,686,667  
2024 1,686,667  
Thereafter 14,477,221  
Total $ 22,488,889