Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details 1)

v3.19.1
Commitments and Contingencies (Details 1)
Dec. 31, 2018
USD ($)
Future minimum maintenance fee payments  
2019 $ 393,840
2020 393,840
2021 393,840
2022 306,100
Future minimum maintenance fee payments Net $ 1,487,620