Management Fee Income and Incentive Income (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Components of Management Fee Income and Incentive Income [Line Items]
Accrued Management Fee Income	$ 1,602,000		$ 1,670,000
Accrued Incentive Income	0		$ 859,000
Management Fee Credits	$ 54,000	$ 65,000