Other Assets and Other Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Other current assets:
Accrued interest and dividends receivable	$ 417	$ 535
Prepaid expenses	709	711
Loan servicing advances receivable	140
Income taxes receivable		661
Indemnification asset		423
Other		26
Total other current assets	1,266	2,356
Other noncurrent assets:
Non-marketable equity securities	2,740
Property and equipment	210	195
Unamortized loan closing costs	137	189
Total other noncurrent assets	3,087	384
Other current liabilities:
Accrued expenses	442	888
Income taxes payable	464
Other	103
Total other current liabilities	1,009	888
Other noncurrent liabilities:
Intangible lease	53	86
Deferred income taxes	7	81
Total other noncurrent liabilities	$ 60	$ 167