Other Assets and Other Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other current assets:
Accrued interest and dividends receivable	$ 7	$ 417
Prepaid expenses	807	709
Loan servicing advances receivable		140
Total other current assets	814	1,266
Other noncurrent assets:
Nonmarketable equity securities	800	2,740
Property and equipment	386	210
Debt issuance costs	171	137
Other	1
Total other noncurrent assets	1,358	3,087
Other current liabilities:
Accrued expenses	972	442
Income taxes payable	122	464
Other	2	103
Total other current liabilities	1,096	1,009
Other noncurrent liabilities:
Accrued expenses	91
Intangible lease	19	53
Deferred income taxes payable	6	7
Total other noncurrent liabilities	$ 116	$ 60