Note 4 - Commitments and Contingent Liabilities (Tables)

6 Months Ended

Jun. 30, 2015

Notes Tables

Schedule of Product Warranty Liability [Table Text Block]

	2015			2014
Balance of accrued warranty at January 1	$	9,237		$	7,579
Warranties issued during the period		2,097			2,336
Cash settlements made during the period		(3,601	)		(1,958	)
Changes in liability for pre-existing warranties during the period, including expirations		2,018			607
Balance of accrued warranty at June 30	$	9,751		$	8,564

Schedule of Loss Contingencies by Contingency [Table Text Block]

	Three Months Ended June 30, 2015		Six Months Ended June 30, 2015
Cost of products sold	$	556	$	1,269
Selling, general and administrative		500		1,000
	$	1,056	$	2,269