Quarterly report pursuant to Section 13 or 15(d)

Notes Payable (Details Narrative)

v3.7.0.1
Notes Payable (Details Narrative) - USD ($)
 1 Months Ended 3 Months Ended
Mar. 31, 2014
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]      
Unamortized discount   $ 2,330,367  
Common stock par value (in dollars per share)   $ 0.01 $ 0.01
12% Junior Secured Notes Payable 2014 [Member] | Private Placement (Securities Purchase Agreements) [Member]      
Debt Instrument [Line Items]      
Debt face amount $ 3,725,000    
Maturity period 5 years    
Debt frequency of periodic payment

Semi-annually

    
Description of collateral terms

The 2014 Secured Notes are collateralized by a security interest in the Company’s property and assets, which security interest is junior and subordinate to the security interest that collateralizes the New Brainlab note.

    
Unamortized discount $ 413,057 $ 108,431 $ 121,985
12% Junior Secured Notes Payable 2014 [Member] | Private Placement (Securities Purchase Agreements) [Member] | Non-Employee Directors [Member]      
Debt Instrument [Line Items]      
Debt face amount 1,100,000    
Other offering expenses   $ 52,257 $ 58,789
12% Junior Secured Notes Payable 2014 [Member] | Private Placement (Securities Purchase Agreements) [Member] | Placement Agents [Member]      
Debt Instrument [Line Items]      
Fair value 30,210    
Placement agents cash commission 145,500    
Other offering expenses $ 76,186    
12% Junior Secured Notes Payable 2014 [Member] | Private Placement (Securities Purchase Agreements) [Member] | Warrant [Member]      
Debt Instrument [Line Items]      
Number of each common stock called 0.01    
Proceeds from common stock called $ 3,725,000    
Warrant exercise price (in dollars per share) $ 70.00    
Fair value $ 413,057    
12% Junior Secured Notes Payable 2014 [Member] | Private Placement (Securities Purchase Agreements) [Member] | Warrant [Member] | Maximum [Member]      
Debt Instrument [Line Items]      
Number of common stock called 27,937    
12% Junior Secured Notes Payable 2014 [Member] | Private Placement (Securities Purchase Agreements) [Member] | Warrant [Member] | Placement Agents [Member]      
Debt Instrument [Line Items]      
Number of warrants issued to placement agent 1,818    
Brainlab Senior Secured Note Payable [Member]      
Debt Instrument [Line Items]      
Stated interest rate   5.50% 5.50%
Debt face amount   $ 2,000,000 $ 2,000,000
Description of collateral terms  

Collateralized by a senior security interest in the assets of the Company.

  
Maturity date   Dec. 31, 2018  
Brainlab Senior Secured Note Payable [Member] | 2016 Securities Purchase Agreement [Member]      
Debt Instrument [Line Items]      
Accrued interest   $ 740,000  
Debt cancelled principal amount   $ 1,300,000  
Number of units issued   99,310  
Brainlab Senior Secured Note Payable [Member] | 2016 Securities Purchase Agreement (Patent And Technology License Agreement) [Member]      
Debt Instrument [Line Items]      
Debt cancelled principal amount   $ 1,000,000  
Brainlab Senior Secured Note Payable [Member] | 2016 Securities Purchase Agreement (Patent And Technology License Agreement) [Member] | 2016 Series A Warrants [Member]      
Debt Instrument [Line Items]      
Warrant exercise price (in dollars per share)   $ 16.23  
Number of common shares issued   0.4  
Brainlab Senior Secured Note Payable [Member] | 2016 Securities Purchase Agreement (Patent And Technology License Agreement) [Member] | 2016 Series B Warrants [Member]      
Debt Instrument [Line Items]      
Warrant exercise price (in dollars per share)   $ 21.10  
Number of common shares issued   0.3  
Brainlab Senior Secured Note Payable [Member] | 2016 Securities Purchase Agreement (Patent And Technology License Agreement) [Member] | Common Stock [Member]      
Debt Instrument [Line Items]      
Number of common shares issued   1