Repurchase Agreements - Amounts At Risk (Details)	12 Months Ended
	Dec. 31, 2014 USD ($)
JVB Financial Group, LLC [Member]
Repurchase Agreement Counterparty [Line Items]
Amount At Risk	$ 1,807,000
Weighted Average Maturity of Repurchase Agreement in Days	8 days
Percent of Stockholders' Equity At Risk	0.196
ED&F Man Capital Markets Inc.
Repurchase Agreement Counterparty [Line Items]
Amount At Risk	$ 1,490,000
Weighted Average Maturity of Repurchase Agreement in Days	22 days
Percent of Stockholders' Equity At Risk	0.162