Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Net income (loss)	$ 1,344	$ (155)
Change in unrealized appreciation of retained interests in transferred assets:
Net unrealized appreciation (depreciation) arising during period	37	(9)
Net realized gains included in net income	(23)	(36)
Change in unrealized appreciation of retained interests in transferred assets	14	(45)
Comprehensive income (loss)	$ 1,358	$ (200)