Mortgage Loans on Real Estate (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 55,387	$ 39,524	$ 69,701
SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	184
Carrying Amount of Mortgages	66,733
Principal amount of loan subject to delinquent principal or "interest"
SBA 7(a) loans [Member] | Secured Borrowings [Member]
Mortgage Loans on Real Estate [Line Items]
Carrying Amount of Mortgages	37,909
Principal amount of loan subject to delinquent principal or "interest"
SBA 7(a) loans [Member] | Government Guaranteed Portions [Member]
Mortgage Loans on Real Estate [Line Items]
Carrying Amount of Mortgages	2,449
Principal amount of loan subject to delinquent principal or "interest"
Texas [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	35
Mortgage loan on minimum interest rate	4.13%
Interest rate variable	6.00%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	3,462
Final maturity date Start	Apr. 26, 2014
Final Maturity Date End	Oct. 18, 2037
Principal amount of loan subject to delinquent principal or "interest"
Texas [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Texas [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Michigan [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	18
Mortgage loan on minimum interest rate	5.25%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	2,464
Final maturity date Start	Feb. 16, 2013
Final Maturity Date End	Jun. 27, 2037
Principal amount of loan subject to delinquent principal or "interest"
Michigan [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Michigan [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
North Carolina [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	7
Mortgage loan on minimum interest rate	5.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	2,117
Final maturity date Start	Sep. 08, 2032
Final Maturity Date End	Oct. 25, 2037
Principal amount of loan subject to delinquent principal or "interest"
North Carolina [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
North Carolina [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Ohio [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	14
Mortgage loan on minimum interest rate	4.25%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,719
Final maturity date Start	May 11, 2013
Final Maturity Date End	Nov. 04, 2037
Principal amount of loan subject to delinquent principal or "interest"
Ohio [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Ohio [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Indiana [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	9
Mortgage loan on minimum interest rate	4.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,493
Final maturity date Start	Nov. 19, 2019
Final Maturity Date End	Aug. 30, 2037
Principal amount of loan subject to delinquent principal or "interest"
Indiana [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Indiana [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Virginia [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	6
Interest rate variable	6.00%
Carrying Amount of Mortgages	1,375
Final maturity date Start	Dec. 13, 2027
Final Maturity Date End	Oct. 15, 2037
Principal amount of loan subject to delinquent principal or "interest"
Virginia [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Virginia [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Wisconsin [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	7
Mortgage loan on minimum interest rate	5.00%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,248
Final maturity date Start	Apr. 23, 2020
Final Maturity Date End	Nov. 14, 2037
Principal amount of loan subject to delinquent principal or "interest"
Wisconsin [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Wisconsin [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Illinois [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	5
Mortgage loan on minimum interest rate	5.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,196
Final maturity date Start	Mar. 26, 2019
Final Maturity Date End	Sep. 18, 2037
Principal amount of loan subject to delinquent principal or "interest"
Illinois [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Illinois [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Kentucky [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	5
Interest rate variable	6.00%
Carrying Amount of Mortgages	1,154
Final maturity date Start	Apr. 09, 2035
Final Maturity Date End	Dec. 28, 2037
Principal amount of loan subject to delinquent principal or "interest"
Kentucky [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Kentucky [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Alabama [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	4
Mortgage loan on minimum interest rate	5.00%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,035
Final maturity date Start	Jul. 27, 2025
Final Maturity Date End	Aug. 25, 2036
Principal amount of loan subject to delinquent principal or "interest"
Alabama [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Alabama [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Mississippi [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	3
Mortgage loan on minimum interest rate	5.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,019
Final maturity date Start	May 18, 2035
Final Maturity Date End	Nov. 04, 2036
Principal amount of loan subject to delinquent principal or "interest"
Mississippi [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Mississippi [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Florida [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	8
Mortgage loan on minimum interest rate	5.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	1,007
Final maturity date Start	Jun. 12, 2016
Final Maturity Date End	Dec. 29, 2036
Principal amount of loan subject to delinquent principal or "interest"
Florida [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Florida [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Georgia [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	6
Mortgage loan on minimum interest rate	5.13%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	855
Final maturity date Start	May 23, 2020
Final Maturity Date End	Jun. 25, 2035
Principal amount of loan subject to delinquent principal or "interest"
Georgia [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Georgia [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Iowa [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	3
Mortgage loan on minimum interest rate	5.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	769
Final maturity date Start	Dec. 22, 2035
Final Maturity Date End	Oct. 17, 2037
Principal amount of loan subject to delinquent principal or "interest"
Iowa [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Iowa [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Connecticut [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	2
Mortgage loan on minimum interest rate	5.13%
Mortgage loan on maximum interest rate	5.63%
Carrying Amount of Mortgages	703
Final maturity date Start	Dec. 05, 2014
Final Maturity Date End	Nov. 30, 2036
Principal amount of loan subject to delinquent principal or "interest"
Connecticut [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	1,000
Connecticut [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Arizona [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	5
Mortgage loan on minimum interest rate	5.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	650
Final maturity date Start	Oct. 28, 2019
Final Maturity Date End	Apr. 28, 2036
Principal amount of loan subject to delinquent principal or "interest"
Arizona [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Arizona [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Oklahoma [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	6
Mortgage loan on minimum interest rate	4.75%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	621
Final maturity date Start	Sep. 09, 2024
Final Maturity Date End	Nov. 10, 2035
Principal amount of loan subject to delinquent principal or "interest"
Oklahoma [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Oklahoma [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Missouri [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	5
Mortgage loan on minimum interest rate	5.25%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	613
Final maturity date Start	Apr. 16, 2018
Final Maturity Date End	Sep. 12, 2037
Principal amount of loan subject to delinquent principal or "interest"
Missouri [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Missouri [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Kansas [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	3
Interest rate variable	6.00%
Carrying Amount of Mortgages	580
Final maturity date Start	Oct. 29, 2032
Final Maturity Date End	May 04, 2036
Principal amount of loan subject to delinquent principal or "interest"
Kansas [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Kansas [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	0
Other [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Number of loans	33
Mortgage loan on minimum interest rate	5.00%
Mortgage loan on maximum interest rate	6.00%
Carrying Amount of Mortgages	2,295
Final maturity date Start	Jan. 31, 2015
Final Maturity Date End	Sep. 13, 2037
Principal amount of loan subject to delinquent principal or "interest"
Other [Member] | Maximum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	500
Other [Member] | Minimum [Member] | SBA 7(a) loans [Member]
Mortgage Loans on Real Estate [Line Items]
Size of loans	$ 0