Description of the Business and Financial Condition (Details Narrative) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Cumulative net loss | $ (93,868,764) | $ (85,726,580) |
| Proceeds from issuance of private placement | 5,800,000 | 8,600,000 |
| September 2016 Private Placement [Member] | ||
| Proceeds from issuance of private placement | 3,800,000 | |
| Debt face amount | 1,750,000 | |
| Conversion of private placement equity into debt | 1,750,000 | |
| December 2015 Private Placement [Member] | ||
| Proceeds from issuance of private placement | 4,700,000 | |
| December 2014 Private Placement [Member] | ||
| Proceeds from issuance of private placement | 9,400,000 | |
| March 2014 Private Placement [Member] | ||
| Proceeds from issuance of private placement | $ 3,500,000 | |
| Brainlab Senior Secured Note Payable [Member] | ||
| Debt face amount | $ 5,000,000 | |
| Description of maturity date |
Matures on December 31, 2018. |
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- Definition Refers the amount of conversion from private placement equity financing into debt. No definition available.
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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