| Schedule of Product Warranty Liability [Table Text Block] |
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Three Months Ended
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Nine Months Ended
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September 28, 2014
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September 29, 2013
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September 28, 2014
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September 29, 2013
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(in thousands)
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Balance at beginning of period
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$
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2,513
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|
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$
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1,127
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|
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$
|
2,055
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|
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$
|
2,124
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|
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Provision for warranties issued
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519
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|
|
|
760
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|
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1,890
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|
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1,360
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Settlements made
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(1,076
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)
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(827
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)
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(1,525
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)
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(2,412
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)
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Changes in reserve for pre-existing warranties during the period
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280
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|
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106
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|
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(184
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)
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|
|
94
|
|
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Balance at end of period
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|
$
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2,236
|
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$
|
1,166
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$
|
2,236
|
|
|
$
|
1,166
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|