v3.7.0.1
Federal and state income tax expense (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Federal and state income tax expense Details    
Current federal and state tax expense $ 0 $ 0
Deferred federal and state tax benefit 340,256 275,687
Change in valuation allowance (340,256) (275,687)
Income tax expense $ 0 $ 0