Post-effective amendment to a registration statement that is not immediately effective upon filing

Notes Payable (Details Narrative)

v3.7.0.1
Notes Payable (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 04, 2016
Mar. 31, 2014
Mar. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]          
Proceeds from common stock called       $ 5,800,000 $ 8,600,000
Unamortized discount     $ 2,330,367 $ 2,424,457  
Common stock par value (in dollars per share)     $ 0.01 $ 0.01 $ 0.01
Loss on restructuring of debt       $ (811,909)
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      
Number of common stock called   27,937      
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% 5.50%
Debt face amount     $ 2,000,000 $ 2,000,000 $ 5,000,000
Description of collateral terms    

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

   
Description of payment terms      

Payable in a single aggregate installment upon maturity.

 
Maturity date     Dec. 31, 2018 Dec. 31, 2018 Apr. 30, 2016
Description of maturity date      

Matures on December 31, 2018.

 
Brainlab Senior Secured Note Payable [Member] | Private Placement (Securities Purchase Agreements) [Member]          
Debt Instrument [Line Items]          
Debt face amount         $ 740,000
Gain on foregoing of debt       $ 941,000  
Brainlab Senior Secured Note Payable [Member] | 2016 Securities Purchase Agreement [Member]          
Debt Instrument [Line Items]          
Accrued interest $ 740,000   $ 740,000    
Debt cancelled principal amount $ 1,300,000   $ 1,300,000    
Number of units issued 99,310   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   $ 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]          
Number of each common stock called 0.40        
Warrant exercise price (in dollars per share) $ 16.23   $ 16.23    
Number of common shares issued 1   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]          
Number of each common stock called 0.30        
Warrant exercise price (in dollars per share) $ 21.10   $ 21.10    
Number of common shares issued 1   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]          
Common stock par value (in dollars per share) $ 0.01        
Number of common shares issued 1   1    
Brainlab Senior Secured Note Payable [Member] | 2016 Registration Rights Agreement [Member]          
Debt Instrument [Line Items]          
Debt face amount $ 1,300,000        
Brainlab Senior Secured Note Payable [Member] | 2016 Registration Rights Agreement [Member] | Maximum [Member]          
Debt Instrument [Line Items]          
Stated interest rate 10.00%        
Brainlab Senior Secured Note Payable [Member] | 2016 Registration Rights Agreement [Member] | Minimum [Member]          
Debt Instrument [Line Items]          
Stated interest rate 2.00%        
New Brainlab Note (amended and restated secured note) [Member] | 2016 Securities Purchase Agreement [Member]          
Debt Instrument [Line Items]          
Debt face amount $ 2,000,000        
Description of collateral terms

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

       
Maturity date Dec. 31, 2018        
Loss on restructuring of debt       820,000  
2014 Secured Notes [Member] | Private Placement (Securities Purchase Agreements) [Member]          
Debt Instrument [Line Items]          
Unamortized discount       121,985 301,531
2014 Secured Notes [Member] | Private Placement (Securities Purchase Agreements) [Member] | Non-Employee Directors [Member]          
Debt Instrument [Line Items]          
Other offering expenses       $ 58,789 $ 166,080