Statements of Cash Flows (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
Membership redemptions payable	$ 4,838,686	$ 2,418,269
Membership contributions received in advance of admission date	$ 25,000	$ 3,164,000