Note F - Sale of Investment Property (Details) (USD $)	12 Months Ended
	Dec. 31, 2012
Investment Property Sale Price March 29, 2012 - Greenspoint at Paradise Valley	$ 29,750,000
Net proceeds realized March 29, 2012 sale	29,432,000
Sale proceeds used to repay mortgage March 29, 2012 sale	15,349,000
Gain on sale of investment property March 29, 2012 sale	22,329,000
Loss on early extinguishment of debt March 29, 2012 sale	4,000
Investment Property Sale Price Sept 28, 2012 - Tamarind Bay Apartments	12,750,000
Net proceeds realized Sept 28, 2012 sale	12,073,000
Purchase price credit for capital improvements Sept 28, 2012 sale	381,000
Sale proceeds used to repay mortgage Sept 28, 2012 sale	6,670,000
Gain on sale of investment property Sept 28, 2012 sale	9,106,000
Loss on early extinguishment of debt Sept 28, 2012 sale	2,697,000
Unamortized loan costs write off Sept 28, 2012 sale	144,000
Prepayment penalty Sept 28, 2012 sale	$ 2,553,000