Note 10 - Derivative Financial Instruments (Details) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Jul. 31, 2013	Jul. 31, 2013 2011 Interest Rate Swap [Member]	Jul. 31, 2013 2013 Interest Rate Swap [Member]	Dec. 31, 2013 Cash Flow Hedging [Member]	Dec. 31, 2013 2013 Credit Facility [Member]	Jul. 31, 2013 2013 Credit Facility [Member]	Jul. 02, 2013 2013 Credit Facility [Member]
Debt Instrument [Line Items]
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net	$ 100,000	$ 100,000	$ 100,000	$ 100,000
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	600,000	14,300,000	600,000	14,300,000				100,000
Derivative Asset, Notional Amount						83,000,000	175,000,000
Derivative, Variable Interest Rate	2.17%		2.17%
Derivative, Amount of Hedged Item										175,000,000
Secured Debt									$ 341,250,000		$ 350,000,000
Derivative, Fixed Interest Rate Percentage	0.87%		0.87%		0.87%