Note 10 - Share-Based Compensation (Details) - The following table summarizes stock option activity under all plans: (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
The following table summarizes stock option activity under all plans: [Abstract]
Outstanding at December 31, 2012		75,500
Outstanding at December 31, 2012 (in Dollars per share)		$ 14.23
Outstanding at December 31, 2012	4 years 109 days	4 years 255 days
Cancelled	(5,000)
Cancelled (in Dollars per share)	$ 11.89
Outstanding at September 30, 2013	70,500
Outstanding at September 30, 2013 (in Dollars per share)	$ 14.40
Outstanding at September 30, 2013	4 years 109 days	4 years 255 days
Exercisable at December 31, 2012		62,166
Exercisable at December 31, 2012 (in Dollars per share)		$ 14.42
Exercisable at December 31, 2012	4 years 36 days	4 years 36 days
Exercisable at September 30, 2013	67,166
Exercisable at September 30, 2013 (in Dollars per share)	$ 14.44
Exercisable at September 30, 2013	4 years 36 days	4 years 36 days