Quarterly report pursuant to Section 13 or 15(d)

10. Commitments and Contingencies (Details)

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10. Commitments and Contingencies (Details)
Mar. 31, 2016
USD ($)
Future minimum maintenance fee payments  
2016 $ 225,000
2017 300,000
2018 300,000
2019 300,000
2020 300,000
Thereafter 1,450,000
Future minimum maintenance fee payments Net $ 2,875,000