Equity (Warrants) (Details) (USD $)
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12 Months Ended | 12 Months Ended | 12 Months Ended | ||||||||||||||||||||||||||||||||||
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Dec. 31, 2013
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Dec. 31, 2012
Warrants
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Dec. 31, 2013
Warrants
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Dec. 31, 2010
Warrants
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Dec. 31, 2012
Contingent Warrants
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Dec. 31, 2013
Contingent Warrants
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Dec. 31, 2010
Contingent Warrants
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Dec. 31, 2012
Warrants in Connection with Private Placement
Warrants
|
Dec. 31, 2011
Warrants in Connection with Private Placement
Warrants
|
Dec. 31, 2012
Warrants in Connection with Private Placement
Contingent Warrants
|
Dec. 31, 2011
Warrants in Connection with Private Placement
Contingent Warrants
|
Dec. 31, 2011
Warrants Issued in Connection with Convertible Promissory Notes
Warrants
|
Dec. 31, 2011
Warrants Issued in Connection with Convertible Promissory Notes
Contingent Warrants
|
Dec. 31, 2012
Warrants In Connection With Line of Credit with Related Party
Warrants
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Dec. 31, 2011
Warrants In Connection With Line of Credit with Related Party
Warrants
|
Dec. 31, 2012
Warrants In Connection With Line of Credit with Related Party
Contingent Warrants
|
Dec. 31, 2011
Warrants In Connection With Line of Credit with Related Party
Contingent Warrants
|
Dec. 31, 2011
Warrants Issued in Connection with Senior Secured Promissory Notes
Warrants
|
Dec. 31, 2011
Warrants Issued in Connection with Senior Secured Promissory Notes
Contingent Warrants
|
Dec. 31, 2011
Placement Agent
Warrants
|
Dec. 31, 2011
Placement Agent
Contingent Warrants
|
Dec. 31, 2012
Contingent warrants related to convertible note
Warrants
|
Dec. 31, 2012
Contingent warrants related to convertible note
Contingent Warrants
|
Dec. 31, 2012
Contingent warrants related to private placement of common stock
Warrants
|
Dec. 31, 2012
Contingent warrants related to private placement of common stock
Contingent Warrants
|
Dec. 31, 2012
Callable warrants
Warrants
|
Dec. 31, 2012
Callable warrants
Contingent Warrants
|
Dec. 31, 2013
Other
Warrants
|
Dec. 31, 2012
Other
Warrants
|
Dec. 31, 2013
Other
Contingent Warrants
|
Dec. 31, 2012
Other
Contingent Warrants
|
Dec. 31, 2012
Warrants expired
Warrants
|
Dec. 31, 2012
Warrants expired
Contingent Warrants
|
Dec. 31, 2012
Warrants Redeemed for Cashless Exercises
Warrants
|
Dec. 31, 2012
Warrants Redeemed for Cashless Exercises
Contingent Warrants
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Dec. 31, 2012
Repurchase of callable warrants
Warrants
|
Dec. 31, 2012
Repurchase of callable warrants
Contingent Warrants
|
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||||||||||||||||||
Warrants, term | 5 years | ||||||||||||||||||||||||||||||||||||
Warrants, Number of Warrants [Roll Forward] | |||||||||||||||||||||||||||||||||||||
Warrants outstanding, beginning of period (in shares) | 9,388,817 | 1,284,816 | 6,003,924 | 5,245,484 | 0 | 1,252,990 | |||||||||||||||||||||||||||||||
Warrants issued (in shares) | 1,672,743 | 1,889,161 | 1,672,743 | 1,889,162 | 203,332 | 203,332 | 325,000 | 0 | 325,000 | 650,000 | 1,250,000 | 1,250,000 | 42,400 | 0 | |||||||||||||||||||||||
Warrants voided (in shares) | 0 | 3,247,741 | |||||||||||||||||||||||||||||||||||
Warrants exercised (in shares) | (325,000) | 0 | (1,249,750) | 0 | (1,608,802) | 0 | (3,288,733) | 0 | (1,844,352) | (1,703,568) | 0 | 0 | (14,789) | 0 | (56,750) | 0 | |||||||||||||||||||||
Expired warrants (in shares) | (10,000) | 0 | |||||||||||||||||||||||||||||||||||
Warrants outstanding, end of period (in shares) | 3,129,168 | 1,284,816 | 6,003,924 | 0 | 0 | 1,252,990 | |||||||||||||||||||||||||||||||
Warrants, Weighted-Average Exercise Price per Warrant [Roll Forward] | |||||||||||||||||||||||||||||||||||||
Warrants outstanding, beginning of period (in dollars per share) | 1.00 | 0.90 | 1.21 | 0.01 | 0.00 | 0.01 | |||||||||||||||||||||||||||||||
Warrants issued (in dollars per share) | $ 0.00 | $ 0.01 | $ 0.01 | $ 1.50 | $ 0.01 | $ 0.01 | $ 1.50 | $ 0.01 | $ 0.01 | $ 0.00 | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 | $ 1.09 | $ 0.00 | |||||||||||||||||||||
Warrants exercised (in dollars per share) | $ 0.01 | $ 0.00 | $ 0.01 | $ 0.00 | $ 0.01 | $ 0.00 | $ 1.50 | $ 0.00 | $ 1.14 | $ 0.63 | $ 0.00 | $ 0.00 | $ 0.53 | $ 0.00 | $ 1.50 | $ 0.00 | |||||||||||||||||||||
Warrants expired (in dollars per share) | $ 1.00 | $ 0.00 | |||||||||||||||||||||||||||||||||||
Warrants outstanding, end of period (in dollars per share) | 1.04 | 0.90 | 1.21 | 0.00 | 0.00 | 0.01 |