Fair Value Measurements Narrative (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended				9 Months Ended					0 Months Ended
	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2013 Deferred Features of Subordinated Note [Member] Fair Value, Measurements, Recurring [Member] Level 3	Dec. 31, 2012 Deferred Features of Subordinated Note [Member] Fair Value, Measurements, Recurring [Member] Level 3	Nov. 30, 2012 Steel Excel	Jun. 11, 2013 Three Point Seven Five Percent Unsecured Convertible Subordinated Debt [Member] Steel Excel	Nov. 30, 2012 Three Point Seven Five Percent Unsecured Convertible Subordinated Debt [Member] Steel Excel	Jun. 11, 2013 School Specialties [Member] Steel Excel	Jan. 28, 2013 School Specialties [Member] Steel Excel
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Market Risk Premium (as a percent)	35.00%
Payments to Acquire Available-for-sale Securities, Debt								$ 9,800	$ 6,000
Available-for-sale Securities, Debt Securities							11,900
Financing, Amount Arranged											21,300
Shares Received in Exchange for Convertible Debentures (in shares)										26,457
Cash Received in Exchange for Investment in Loan										17,500
Shares Received in Exchange for Investment in Loan (in shares)										49,136
Fair Value of Shares Received (in dollars per share)										$ 109
Gain on Disposal of Subordinated Debentures										3,200
Gain on Diisposal of Loan										1,600
Increase (Decrease) in Due to Related Parties					184
Deferred fee liability to related party					0	184
Impaired loan recorded investment	2,665	[1]	2,915	[1]
Loans guaranteed	$ 2,196		$ 2,328

[1] $2,196 is guaranteed by the USDA or SBA.