SCHEDULE IV-MORTGAGE LOANS ON REAL ESTATE (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) item
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	193
Carrying Amount of Mortgages	$ 103,440,000
Principal Amount of Loans Subject to Deliquent Principal or "Interest"	$ 357,000
Commercial Real estate | Florida
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	1
Interest Rate	9.77%
Interest Rate (Minimum)	9.77%
Carrying Amount of Mortgages	$ 20,338,000
SBA 7(a) Loans
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	188
Carrying Amount of Mortgages	$ 79,824,000
Principal Amount of Loans Subject to Deliquent Principal or "Interest"	357,000
Federal income tax cost basis of mortgage loans	67,652,000
Loans not secured by real estate	216,000
Loans with subordinate lien positions	185,000
SBA 7(a) Loans | Government guaranteed portions
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Carrying Amount of Mortgages	5,239,000
SBA 7(a) Loans | SBA 7(a) loans, subject to secured borrowings
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Carrying Amount of Mortgages	34,428,000
SBA 7(a) Loans | General reserves
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
General reserves	$ (206,000)
SBA 7(a) Loans | Michigan
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	25
Interest Rate (Minimum)	5.00%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 6,819,000
SBA 7(a) Loans | Michigan | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	10,000
SBA 7(a) Loans | Michigan | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 880,000
SBA 7(a) Loans | Ohio
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	21
Interest Rate (Minimum)	5.00%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 5,459,000
SBA 7(a) Loans | Ohio | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 670,000
SBA 7(a) Loans | Texas
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	28
Interest Rate (Minimum)	4.13%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 3,782,000
SBA 7(a) Loans | Texas | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 660,000
SBA 7(a) Loans | Indiana
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	13
Interest Rate (Minimum)	4.75%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 2,810,000
SBA 7(a) Loans | Indiana | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	40,000
SBA 7(a) Loans | Indiana | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 430,000
SBA 7(a) Loans | Florida
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	11
Interest Rate (Minimum)	5.25%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 2,762,000
SBA 7(a) Loans | Florida | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	10,000
SBA 7(a) Loans | Florida | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 640,000
SBA 7(a) Loans | Virginia
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	9
Interest Rate	6.00%
Carrying Amount of Mortgages	$ 2,628,000
SBA 7(a) Loans | Virginia | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	150,000
SBA 7(a) Loans | Virginia | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 720,000
SBA 7(a) Loans | Kentucky
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	6
Interest Rate	6.00%
Carrying Amount of Mortgages	$ 1,660,000
SBA 7(a) Loans | Kentucky | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	110,000
SBA 7(a) Loans | Kentucky | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 520,000
SBA 7(a) Loans | North Carolina
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	5
Interest Rate (Minimum)	5.75%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 1,465,000
SBA 7(a) Loans | North Carolina | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	100,000
SBA 7(a) Loans | North Carolina | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 670,000
SBA 7(a) Loans | Alabama
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	6
Interest Rate (Minimum)	5.00%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 1,441,000
SBA 7(a) Loans | Alabama | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	40,000
SBA 7(a) Loans | Alabama | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 470,000
SBA 7(a) Loans | Wisconsin
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	7
Interest Rate (Minimum)	5.00%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 1,268,000
SBA 7(a) Loans | Wisconsin | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	10,000
SBA 7(a) Loans | Wisconsin | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 340,000
SBA 7(a) Loans | Illinois
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	5
Interest Rate (Minimum)	5.75%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 1,285,000
SBA 7(a) Loans | Illinois | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	60,000
SBA 7(a) Loans | Illinois | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 370,000
SBA 7(a) Loans | Missouri
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	5
Interest Rate (Minimum)	5.25%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 1,094,000
SBA 7(a) Loans | Missouri | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 450,000
SBA 7(a) Loans | Arizona
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	5
Interest Rate (Minimum)	5.75%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 1,031,000
SBA 7(a) Loans | Arizona | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	30,000
SBA 7(a) Loans | Arizona | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 450,000
SBA 7(a) Loans | Iowa
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	4
Interest Rate (Minimum)	4.92%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 923,000
SBA 7(a) Loans | Iowa | Minimum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	130,000
SBA 7(a) Loans | Iowa | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 490,000
SBA 7(a) Loans | Other
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	38
Interest Rate (Minimum)	4.75%
Interest Rate (Maximum)	6.00%
Carrying Amount of Mortgages	$ 5,936,000
Principal Amount of Loans Subject to Deliquent Principal or "Interest"	357,000
SBA 7(a) Loans | Other | Maximum
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 560,000
Conventional Loans
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	4
Carrying Amount of Mortgages	$ 3,278,000
Conventional Loans | Ohio
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	1
Interest Rate	10.33%
Interest Rate (Minimum)	10.33%
Carrying Amount of Mortgages	$ 1,139,000
Conventional Loans | North Carolina
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	1
Interest Rate	7.50%
Interest Rate (Minimum)	7.50%
Carrying Amount of Mortgages	$ 435,000
Conventional Loans | Arizona
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	1
Interest Rate	6.33%
Interest Rate (Minimum)	6.33%
Carrying Amount of Mortgages	$ 1,270,000
Conventional Loans | Pennsylvania
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Number of Loans | item	1
Interest Rate	4.33%
Interest Rate (Minimum)	4.33%
Carrying Amount of Mortgages	$ 434,000
Mortgage Loans - $20,409,000 | Commercial Real estate
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 20,408,000
Percentage of secured borrowings sold	49.00%
Mortgage Loans - $29,000 | SBA 7(a) Loans | Texas
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 29,000
Interest Rate	6.00%
Mortgage Loans - $51,000 | SBA 7(a) Loans | Texas
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 51,000
Interest Rate	6.00%
Mortgage Loans - $1,272,000 | SBA 7(a) Loans | Wisconsin
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 1,272,000
Valuation reserve	27,000
Mortgage Loans -$357,000 | SBA 7(a) Loans | Other
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 357,000
Interest Rate	5.00%
Valuation reserve	$ 33,000
Mortgage Loans - $436,000 | SBA 7(a) Loans | Other
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	436,000
Valuation reserve	62,000
Mortgage Loans - $462,000 | Conventional Loans | North Carolina
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 462,000
Interest Rate	7.50%
Mortgage Loans - $790,000 | Conventional Loans | Pennsylvania
SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE
Size of Loans	$ 790,000
General reserves	$ (227,000)