Note 4 - Earnings Per Share (Details) - shares	6 Months Ended
	Jun. 30, 2014	Mar. 20, 2014
Note 4 - Earnings Per Share (Details) [Line Items]
Stock Repurchased and Retired During Period, Shares	700,000
March Twenty Two Thousand and Fourteen Plan [Member]
Note 4 - Earnings Per Share (Details) [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		700,000
Two Separate Plans Announced in 2013 [Member]
Note 4 - Earnings Per Share (Details) [Line Items]
Purchase of Common Stock Percentage On Outstanding Shares		5.00%