Income Taxes - Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ (2,221,000)	$ 0
Net operating loss carryforwards, permanent loss of tax benefit	33,000,000
Unrecognized tax benefits	0	0
Unrecognized tax benefits, income tax penalties and interest accrued	0	0
Unrecognized tax benefits, income tax penalties and interest expense recognized	0	0
Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	39,622,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 39,927,000