Note E - Investment Properties and Accumulated Depreciation (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Retired personal property cost basis	$ 327,000	$ 6,137,000
Retired personal property accumulated depreciation	327,000	6,137,000
Investment Property - Gross Cost - Federal tax basis	60,450,000	97,042,000
Invesment Property - Accumulated Depreciation - Tax Basis	$ 45,424,000	$ 71,346,000