8. Discontinued Operations and Real Estate Interests Held for Sale (Detail) - (Table 2) Assets and Liabilities Associated with the Real Estate Interest Held for Sale (USD $)	Mar. 31, 2013	Dec. 31, 2012
Assets associated with real estate interest held for sale	$ 100,000	$ 18,098,789
Grove Isle Mortgage Note Payable
Obligations associated with real interest held for sale		2,696,000
Grove Isle Accrued and Other Liabilities
Obligations associated with real interest held for sale		23,000
Bayshore Mortgage Note Payable
Obligations associated with real interest held for sale		8,190,000
Bayshore Interest Rate Swap Contract Payable
Obligations associated with real interest held for sale		1,965,000
Bayshore Interest Rate Swap Contract Payable
Obligations associated with real interest held for sale		510,000
Total
Assets associated with real estate interest held for sale		13,384,000
Obligations associated with real interest held for sale	100,000
Grove Isle
Assets associated with real estate interest held for sale	100,000	1,434,000
Grove Isle Spa
Assets associated with real estate interest held for sale		1,801,000
Other Assets Real Estate
Assets associated with real estate interest held for sale		222,000
Bayshore Restaurant
Assets associated with real estate interest held for sale		7,822,000
Bayshore Goodwill
Assets associated with real estate interest held for sale		5,629,000
Bayshore Other Receivables
Assets associated with real estate interest held for sale		206,000
Bayshore Other Assets
Assets associated with real estate interest held for sale		985,000
Total
Obligations associated with real interest held for sale		$ 18,099,000