Stock Options and Warrants - Rights and Warrants (Details) (USD $)		0 Months Ended
	Mar. 28, 2011	May 11, 2010 Former Chief Executive Officer [Member]	May 11, 2010 Former Chief Executive Officer [Member] May 10, 2015 [Member]	May 11, 2010 Former Chief Executive Officer [Member] May 10, 2015 [Member]	May 11, 2010 Former Chief Executive Officer [Member] May 10, 2020 [Member]	May 11, 2010 Former Chief Executive Officer [Member] Clause One and Two [Member]	Dec. 31, 2012 Options Matching Right [Member]	Nov. 12, 2009 Options Matching Right [Member]	Dec. 31, 2013 Options Matching Right [Member] Director [Member]	Nov. 12, 2009 Options Matching Right [Member] Director [Member]
Class of Warrant or Right [Line Items]
Litigation settlement		$ 1,500,000
Number of shares that may be purchased by warrants (shares)		1,100,000	83,333	333,333	666,667	416,666
Exercise price of right (usd per right)	2.65	6.00						3.42
Litigation expense		5,600,000
Assigned rights (usd per share)										83,333
Aggregate fair value of rights							$ 46,000	$ 673,000
Rights outstanding (shares)							1,300,000		83,333