Note 2 - Operating Property Activities - Pro Forma Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Revenues from rental property	$ 878,200	$ 886,500
Net income	313,000	538,200
Net income available to the Company’s common shareholders	$ 273,500	$ 488,000
Basic (in dollars per share)	$ 0.65	$ 1.19
Diluted (in dollars per share)	$ 0.65	$ 1.18