Note 11 - Shareholder Rights Plan (Details) (USD $)				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Series B Junior Participating Preferred Stock [Member] Shareholder Rights Plan 2008 [Member]	Dec. 31, 2013 Shareholder Rights Plan 2008 [Member]	Dec. 31, 2013 Shareholder Rights Plan 2008 [Member] Minimum [Member]	Apr. 04, 2008 Shareholder Rights Plan 2008 [Member] Minimum [Member]
Note 11 - Shareholder Rights Plan (Details) [Line Items]
Stockholders Rights Plan, Exercisability Threshold, Percentage						15.00%
Stockholders Rights Plan, Exercise Percentage of Voting Stock Ownership Offer						15.00%
Exercise Price per Right (in Dollars per share)				$ 75.00
Redemption Price per Right (in Dollars per share)				$ 0.01
Percentage of Beneficial Ownership					50.00%
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.01	$ 0.01	$ 0.01
Preferred Stock, Capital Shares Reserved for Future Issuance (in Shares)			175,000