Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies (Details 1)

v3.8.0.1
Basis of Presentation and Summary of Significant Accounting Policies (Details 1) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Brainlab Senior Secured Note Payable [Member]    
Debt Instrument [Line Items]    
Carrying Values $ 2,027,500 $ 2,028,111
Estimated Fair Values 2,027,500 2,028,111
2010 Junior Secured Notes Payable [Member]    
Debt Instrument [Line Items]    
Carrying Values 1,938,635 1,796,042
Estimated Fair Values 3,778,750 3,752,500
12% Junior Secured Notes Payable 2014 [Member]    
Debt Instrument [Line Items]    
Carrying Values 1,903,031 1,942,195
Estimated Fair Values $ 1,983,375 $ 2,042,625