The change in the estimate of cash flows expected to be collected, after acquisition of loans, which results in an increase (decrease) in accretable yield (for example, if actual cash flows are significantly greater than previously expected). This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that was acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

No definition available.

Portfolio Assets (Details) (USD $)	3 Months Ended
Portfolio Assets (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Loan and real estate portfolios
Allowance for Loan Losses	$ 417,000		$ 394,000
Carrying Value, net	39,331,000		44,904,000
Real estate held for sale, net	12,133,000		10,171,000
Total Portfolio Assets	51,464,000		55,075,000
Income from Portfolio Assets	1,936,000	8,505,000
Other disclosures
Aggregate carrying value of portfolio asset sold	200,000	8,400,000
Provisions for loan and impairment losses, net of recoveries, through a charge to income	106,000	200,000
Purchased Credit-Impaired Loans
Changes in accretable yield
Beginning Balance		4,732,000
Accretion	(14,000)	(347,000)
Reclassification from (to) nonaccretable difference	42,000	18,000
Disposals	(28,000)	(25,000)
Ending Balance		4,378,000
Summary of acquisitions
Face value at acquisition	3,599,000	5,205,000
Cash flows expected to be collected at acquisition, net of adjustments	612,000	1,699,000
Basis in acquired loans at acquisition	356,000	382,000
Loan Portfolios
Loan and real estate portfolios
Carrying Value	39,748,000		45,298,000
Allowance for Loan Losses	417,000	753,000	394,000	781,000
Carrying Value, net	39,331,000		44,904,000
Other disclosures
Provision for loan losses, net of recoveries	51,000	100,000
Loan Portfolios \| Purchased Credit-Impaired Loans
Loan and real estate portfolios
Income from Portfolio Assets	1,605,000	7,575,000
Loan Portfolios \| Purchased performing loans
Loan and real estate portfolios
Income from Portfolio Assets	91,000	71,000
Loan Portfolios \| Other
Loan and real estate portfolios
Income from Portfolio Assets	36,000	35,000
Loan Portfolios \| Commercial real estate
Loan and real estate portfolios
Carrying Value, net	28,446,000		32,643,000
Loan Portfolios \| Business assets
Loan and real estate portfolios
Carrying Value, net	3,686,000		4,021,000
Loan Portfolios \| Other commercial
Loan and real estate portfolios
Carrying Value, net	7,199,000		8,240,000
Loan Portfolios \| Other commercial \| Other
Loan and real estate portfolios
Carrying Value	4,561,000		5,194,000
Allowance for Loan Losses	31,000	5,000	41,000	5,000
Carrying Value, net	4,530,000		5,153,000
Loan Portfolios \| Domestic \| Commercial real estate \| Purchased Credit-Impaired Loans
Loan and real estate portfolios
Carrying Value	24,518,000		28,487,000
Allowance for Loan Losses	29,000	510,000		553,000
Carrying Value, net	24,489,000		28,487,000
Loan Portfolios \| Domestic \| Business assets \| Purchased Credit-Impaired Loans
Loan and real estate portfolios
Carrying Value	3,712,000		4,047,000
Allowance for Loan Losses	26,000	200,000	26,000	185,000
Carrying Value, net	3,686,000		4,021,000
Loan Portfolios \| Domestic \| Other commercial \| Purchased Credit-Impaired Loans
Loan and real estate portfolios
Carrying Value	2,669,000		3,087,000
Allowance for Loan Losses		38,000		38,000
Carrying Value, net	2,669,000		3,087,000
Loan Portfolios \| Latin America \| Commercial real estate \| Purchased Credit-Impaired Loans
Loan and real estate portfolios
Carrying Value	1,046,000		1,034,000
Allowance for Loan Losses	331,000		327,000
Carrying Value, net	715,000		707,000
Loan Portfolios \| Europe \| Commercial real estate \| Purchased Credit-Impaired Loans
Loan and real estate portfolios
Carrying Value	3,242,000		3,449,000
Carrying Value, net	3,242,000		3,449,000
Real Estate Portfolios
Loan and real estate portfolios
Income from Portfolio Assets	204,000	824,000
Other disclosures
Impairment charges	55,000	100,000
Real Estate Portfolios \| Special Situations Platform
Loan and real estate portfolios
Carrying value of real estate property		$ 6,900,000