Summarized Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financia lInformation [TableTextBlock]

(in thousands, except per share information)
	Quarter Ended
	March 31, 2016		June 30, 2016		September 30, 2016		December 31, 2016
Interest income	$	20,466	$	19,235	$	22,358	$	25,068
Interest expense		(3,319)		(3,330)		(3,979)		(4,976)
Net interest income		17,147		15,905		18,379		20,092
(Losses) gains		(19,558)		(7,308)		4,418		(38,003)
Net portfolio (loss) income		(2,411)		8,597		22,797		(17,911)
Expenses:
Management fees and overhead expenses		1,269		1,274		1,388		1,557
Other expenses		911		860		883		951
Total expenses		2,180		2,134		2,271		2,508
Net (loss) income	$	(4,591)	$	6,463	$	20,526	$	(20,419)
Basic and diluted net (loss) income per share	$	(0.21)		0.29	$	0.85	$	(0.72)
Weighted Average Shares Outstanding		21,756		21,921		24,133		28,494
Dividends declared per share	$	0.42	$	0.42	$	0.42	$	0.42
	Quarter Ended
	March 31, 2015		June 30, 2015		September 30, 2015		December 31, 2015
Interest income	$	14,614	$	16,753	$	18,352	$	19,092
Interest expense		(1,296)		(1,567)		(2,037)		(2,371)
Net interest income		13,318		15,186		16,315		16,721
Losses		(6,063)		(16,017)		(23,682)		(6,813)
Net portfolio income (loss)		7,255		(831)		(7,367)		9,908
Expenses:
Management fees and overhead expenses		1,095		1,288		1,321		1,338
Other expenses		651		713		729		759
Total expenses		1,746		2,001		2,050		2,097
Net income (loss)	$	5,509	$	(2,832)	$	(9,417)	$	7,811
Basic and diluted net income (loss) per share	$	0.54	$	(0.14)	$	(0.42)	$	0.36
Weighted Average Shares Outstanding	$	16,847	$	19,752	$	22,545	$	21,771
Dividends declared per share	$	0.54	$	0.54	$	0.42	$	0.42