Basis of Presentation (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 item	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Basis of Presentation
Net loss	$ (1,815,000)	$ (244,000)
Cash flows from operations	1,759,000	428,000
Excess of current liabilities over current assets	9,500,000
Stockholders' deficiency	35,845,000	26,097,000	34,363,000	26,253,000
Number of primary credit facilities	2
American AgCredit credit facility
LIQUIDITY
Mandatory principal repayment	4,100,000
Amenities
LIQUIDITY
Purchase of amenities at actual construction cost	35,000,000
Minimum
LIQUIDITY
Required liquidity under financial covenants	4,000,000
Minimum | American AgCredit credit facility
LIQUIDITY
Required liquidity under financial covenants	4,000,000
Maximum
LIQUIDITY
Required total liabilities under financial covenants	175,000,000
Maximum | American AgCredit credit facility
LIQUIDITY
Required total liabilities under financial covenants	$ 175,000,000