Note 2 - Derivative Instruments and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2014

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

As of June 30, 2014:
Commodity	Trade Date	Effective Date	Notional Amount		Termination Date
Copper	1/31/2014	2/1/2014		$ 3,879	12/31/2014
Copper	3/11/2014	4/1/2014		$ 3,014	12/31/2014

As of December 31, 2013:
Commodity	Trade Date	Effective Date	Notional Amount		Termination Date
Copper	6/21/2013	10/1/2013		$ 2,169	6/30/2014

As of June 30, 2013:
Commodity	Trade Date	Effective Date	Notional Amount		Termination Date
Copper	10/29/2012	1/1/2013		$ 3,472	9/30/2013
Copper	2/26/2013	3/1/2013		$ 2,677	12/31/2013
Copper	3/1/2013	3/1/2013		$ 2,636	12/31/2013
Copper	4/15/2013	5/1/2013		$ 4,033	12/31/2013
Copper	6/21/2013	10/1/2013		$ 2,169	6/30/2014

Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]

As of June 30, 2014:
Currency Denomination	Notional Amount
United States Dollar (USD) to Euro	$	250
British Pound Sterling (GBP) to Euro	£	3,000

As of December 31, 2013:
Currency Denomination	Notional Amount
United States Dollar (USD) to Euro	$	650
British Pound Sterling (GBP) to Euro	£	4,000

Schedule of Derivative Assets Liabilities at Fair Value [Table Text Block]

	June 30, 2014			December 31, 2013
Commodity contracts	$	77		$	69
Foreign currency contracts		(97	)		56
Interest rate swaps		(1,435	)		1,236

Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]

	Amount of Loss Recognized in Accumulated Other Comprehensive Loss for the Three Months Ended June 30,					Location of Gain (Loss) Recognized in Net Income on Ineffective Portion of Hedges	Amount of Loss Reclassified from Accumulated Other Comprehensive Loss into Net Income for the Three Months Ended June 30,					Amount of Gain (Loss) Recognized in Net Income on Hedges (Ineffective Portion) for the Three Months Ended June 30,
	2014			2013			2014		2013			2014		2013
Derivatives Designated as Hedging Instruments
Interest rate swaps	$	(1,208	)	$	—	Interest expense	$	—	$	—		$	—	$	—
Derivatives Not Designated as Hedging Instruments
Interest rate swaps (1)	$	—		$	—	Interest expense	$	—	$	(1,003	)	$	—	$	1,266
Commodity and foreign currency contracts	$	—		$	—	Cost of goods sold	$	—	$	—		$	224	$	(826	)

	Amount of Loss Recognized in Accumulated Other Comprehensive Loss for the Six Months Ended June 30,					Location of Gain (Loss) Recognized in Net Income on Ineffective Portion of Hedges	Amount of Loss Reclassified from Accumulated Other Comprehensive Loss into Net Income for the Six Months Ended June 30,					Amount of Gain (Loss) Recognized in Net Income on Hedges (Ineffective Portion) for the Six Months Ended June 30,
	2014			2013			2014		2013			2014			2013
Derivatives Designated as Hedging Instruments
Interest rate swaps	$	(1,708	)	$	—	Interest expense	$	—	$	—		$	—		$	—
Derivatives Not Designated as Hedging Instruments
Interest rate swaps (1)	$	—		$	—	Interest expense	$	—	$	(2,005	)	$	—		$	2,472
Commodity and foreign currency contracts	$	—		$	—	Cost of goods sold	$	—	$	—		$	(144	)	$	(1,118	)