Note 1 - Summary of Significant Interim Accounting Policies (Details) - Options Transactions (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Options Transactions [Abstract]
Outstanding December 31, 2012	614,917
Outstanding December 31, 2012 (in Dollars per share)	$ 11.24
Granted	202,884
Granted (in Dollars per share)	$ 11.43
Exercised	(34,758)	(8,896)
Exercised (in Dollars per share)	$ 9.19
Lapsed	(31,150)
Lapsed (in Dollars per share)	$ 10.68
Cancelled	(21,481)
Cancelled (in Dollars per share)	$ 11.66
Outstanding September 30, 2013	730,412
Outstanding September 30, 2013 (in Dollars per share)	$ 11.40