Warrants (Details) (Warrants [Member], USD $)	12 Months Ended
	Dec. 31, 2013
Warrants [Line Items]
Exercisable at beginning of year (in shares)	159,967
Became exercisable (in shares)	0
Exercised (in shares)	0
Terminated/cancelled/expired (in shares)	0
Exercisable (in shares)	159,967
Series I Warrants [Member]
Warrants [Line Items]
Original number of warrants issued (in shares)	2,619,036	[1]
Exercise price per common share (in dollars per share)	$ 3.59
Exercisable at beginning of year (in shares)	159,967
Became exercisable (in shares)	0
Exercised (in shares)	0
Terminated/cancelled/expired (in shares)	0
Exercisable (in shares)	159,967
Expiration date	March 2015

[1] Referred to as our Series I Warrants.