Note M - Contingencies (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Product Warranty Liability [Table Text Block]

	Three Months Ended March 31,
	2013			2012
Aggregate product warranty liability at beginning of period	$	776		$	313
Net aggregate expense related to product warranties		(10	)		120
Aggregate reductions for payments		(20	)		(100	)
Aggregate product warranty liability at end of period	$	746		$	333