Note 10 - Stock Based Compensation (Details) (USD $)	0 Months Ended	12 Months Ended									12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 28, 2013	Oct. 27, 2013	Jun. 13, 2007	Dec. 31, 2001 Stock Option Plan 2001 [Member]	Dec. 31, 2004 Stock Incentive Plan 2004 [Member]	Dec. 31, 2013 Stock Incentive Plan 2007 [Member]	Dec. 31, 2012 Stock Incentive Plan 2007 [Member]	Dec. 31, 2011 Stock Incentive Plan 2007 [Member]	Dec. 31, 2007 Stock Incentive Plan 2007 [Member]	Dec. 31, 2013 Issued To Consultants For Services [Member]	Dec. 31, 2012 Issued To Consultants For Services [Member]	Dec. 31, 2011 Issued To Consultants For Services [Member]	Dec. 31, 2013 Chief Executive Officer [Member]
Note 10 - Stock Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	6 years 219 days	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized			944,444		444,444			222,222	148,148	148,148
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized			500,000		222,222
Percentage Of Fair Market Value Of Shares														100.00%
Percentage Of Outstanding Stock Determining Factor For Incentive Stock Price														10.00%
Percentage Of Fair Market Values Of Shares														110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		12,873	56,710	14,933							187,888	148,553	277,036
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period		38,972	64,316	55,593							41,379	66,019	57,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		12,429	47,575															95,555
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	861,905	861,905	725,529	691,809	481,699	900,000	3,900,000				863,461
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant											332,151
Allocated Share-based Compensation Expense (in Dollars)		$ 1,235,437	$ 1,143,764	$ 1,207,886							$ 1,200,000	$ 1,100,000	$ 1,200,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)											$ 1,200,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		1 year 109 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)											$ 3.40	$ 7.28	$ 8.48
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)															$ 10
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		111	2,942	11,333											5,555	5,387	5,000