Equity (Warrants) (Details) (USD $)	12 Months Ended				12 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012 Warrants	Dec. 31, 2013 Warrants	Dec. 31, 2010 Warrants	Dec. 31, 2012 Contingent Warrants	Dec. 31, 2013 Contingent Warrants	Dec. 31, 2010 Contingent Warrants	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	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	Dec. 31, 2012 Repurchase of callable warrants Warrants	Dec. 31, 2012 Repurchase of callable warrants Contingent Warrants
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