CONSOLIDATED BALANCE SHEETS [Parenthetical] (Going Concern Basis [Member], USD $)	Dec. 31, 2010
Valuation allowance for other receivables (in dollars)	$ 272,137
Mortgage debt, due within one year (in dollars)	$ 372,984
Common Class A [Member]
Common stock, par value (in dollars per share)	$ 0.10
Common stock, shares authorized	700,000
Common stock, shares issued	478,940
Treasury stock, shares	36,407
Common Class B [Member]
Common stock, par value (in dollars per share)	$ 0.10
Common stock, shares authorized	10,000,000
Common stock, shares issued	3,530,547
Treasury stock, shares	570,400