Note 2 - Stock-based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of Stock-Based Compensation Plans in Effect	2		2
Share-based Compensation	$ 21,000	$ 20,000	$ 41,000	$ 38,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 90,500		$ 90,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)	17,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period (in Shares)			92,000