Note 11 - Financial Instruments (Details)	6 Months Ended					9 Months Ended
	Sep. 30, 2013 USD ($)	Jun. 30, 2013 AUD	Jun. 30, 2013 GBP (£)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 AUD	Sep. 30, 2013 Interest Expense [Member] USD ($)	Sep. 30, 2012 Interest Expense [Member] USD ($)	Sep. 30, 2013 Other Current Liabilities [Member] USD ($)
Note 11 - Financial Instruments (Details) [Line Items]
Derivative, Fixed Interest Rate				4.36%	4.36%
Derivative, Notional Amount				$ 4,800,000
Unrealized Gain (Loss) on Derivatives						101,000	169,000
Long-term Debt, Fair Value (in Dollars)					50,000,000
Derivative, Amount of Hedged Item (in Dollars)		60,000,000	40,000,000
Derivative, Amount of Hedged Item (in Pounds)		60,000,000	40,000,000
Payments for (Proceeds from) Hedge, Investing Activities	(500,000)
Derivative Liability								$ 272,000