Affinity Acquisition (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified			0 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Oct. 02, 2012 Affinity [Member]
Business Acquisition [Line Items]
Business acquisition, percent of voting interest acquired			100.00%
Business acquisition, purchase price			$ 15,901,000
Cash paid for Affinity merger			8,000,000
Note paid for Affinity merger			2,330,000
Number of shares for Affinity merger (in shares)			2,650
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Value of common stock issued in Affinity merger			$ 5,512,000