Loan Receivables (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Loans Receivable [Line Items]
Beginning balance	$ 41,686
New loans issued	12,410
Reserve for uncollectible loans	(3,211)
Loan amortization and repayments	(7,613)
Ending balance	43,272
Mortgage loans
Loans Receivable [Line Items]
Beginning balance	28,316
New loans issued	4,762
Loan amortization and repayments	(5,394)
Ending balance	27,684
Capital Improvement Loans
Loans Receivable [Line Items]
Beginning balance	4,580
Loan amortization and repayments	(760)
Ending balance	3,820
Working Capital Loans
Loans Receivable [Line Items]
Beginning balance	8,790
New loans issued	7,648
Reserve for uncollectible loans	(3,211)
Loan amortization and repayments	(1,459)
Ending balance	$ 11,768