Note 3 - Mortgage Note Receivable (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Purchase price for mortgage of investment partnership, Michigan Beach - 2006	$ 4,320,000	$ 4,320,000
Principal balance of mortgage acquired, Michigan Beach - 2006	3,596,000	3,596,000
Carrying value of mortgage note reduced by equity in loss of Michigan Beach	141,000	37,000
Carrying value of mortgage note reduced by impairment charge of Michigan Beach		$ 50,000