11. Fair Value measurements (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value [Member]
Fair values of the Fireside receivables and the related secured debt to their contractual balances
Fireside receivables portfolio	$ 43,021	$ 59,668
Debt secured by Fireside receivables portfolio	40,387	57,107
Contractual Balance [Member]
Fair values of the Fireside receivables and the related secured debt to their contractual balances
Fireside receivables portfolio	43,284	60,804
Debt secured by Fireside receivables portfolio	$ 23,466	$ 41,365