Investments in Tax-Exempt Bonds Greens of Pine Glen (Details) (Greens of Pine Glen [Member], USD $)	12 Months Ended
	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Available-for-Sale Securities, Asset Ownership	100.00%
Available-for-sale Securities, at Par Value	$ 9,500,000
Available-for-sale Security, Maturity Date at a point in time	Oct. 01, 2047
Series A [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, at Par Value	8,500,000
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Series B [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, at Par Value	$ 950,000
Debt Instrument, Interest Rate, Stated Percentage	12.00%