Margin Account Loan (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Debt Disclosure [Abstract]
Line of credit facility initiation date	Jul. 26, 2011
Interest rate during period (percent)	2.50%
Reduction in Wells Fargo base rate (percent)	2.75%
Margin account loan liability	$ 0	$ 0
Increase in accrued interest		$ 130,000