Note 8 - Treasury Stock (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Note 8 - Treasury Stock (Details) [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	500,000
Treasury Stock, Shares, Acquired	217,689
Treasury Stock, Shares	181,931	13,018
Employee Stock Purchase Plan [Member]
Note 8 - Treasury Stock (Details) [Line Items]
Treasury Stock, Shares, Acquired	35,758