Note 4 - Derivative Instruments and Hedging Activities (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Derivative Instruments [Table Text Block]

Hedged Item	Contract Date	Effective Date	Notional Amount		Fixed Price (per lb)		Expiration Date
Copper	February 12, 2018	February 1, 2018	$	3,776	$	3.114	December 31, 2018
Copper	March 8, 2018	March 9, 2018	$	3,427	$	3.109	December 31, 2018
Copper	March 20, 2018	March 21, 2018	$	3,418	$	3.101	December 31, 2018
Copper	March 20, 2018	March 21, 2018	$	1,697	$	3.079	December 31, 2018
Copper	March 26, 2018	April 1, 2018	$	3,003	$	3.027	December 31, 2018

Schedule Of Derivative Assets (Liabilities) at Fair Value [Table Text Block]

	March 31 , 201 8			December 31, 201 7
Commodity contracts	$	(163	)	$	107
Foreign currency contracts		(25	)		167
Interest rate swaps		13,339			4,356

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

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+ Details