General form of registration statement for all companies including face-amount certificate companies

7. Accrued Expenses (Details)

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7. Accrued Expenses (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Dec. 31, 2014
Payables and Accruals [Abstract]      
Accrued payroll and benefits   $ 625,289 $ 67,120
Accrued professional fees   413,945 574,186
Accrued research costs   145,026 573,879
Accrued interest   77,857 0
Other   224,929 194,506
Total accrued expenses $ 1,607,125 $ 1,487,046 $ 1,409,691