Note 11 - Asset Impairments	12 Months Ended
Dec. 27, 2014
Disclosure Text Block Supplement [Abstract]
Asset Impairment Charges [Text Block]	11. Asset Impairments During 2014, the company recorded an asset impairment charge of approximately $0.3 million within selling, general and administrative expenses. This charge reflects the write-down of assets from project cancellations. The charge was recognized as an “other” charge for segment reporting purposes. The carrying values of the company’s assets held for sale are $5.5 million for the previously closed manufacturing facility in Des Plaines, Illinois as of December 27, 2014 and December 28, 2013. The company recorded no impairments of assets during 2013. During 2012, the company recorded an asset impairment charge of approximately $0.5 million within selling, general and administrative expenses. This charge reflects the write-down of the company’s previously closed manufacturing facility in Dünsen, Germany to its net selling price. The charge was recognized as an “other” charge for segment reporting purposes. The Dünsen facility was sold during the fourth quarter of 2012. Also, during the third quarter of 2012, the company reclassified its Yangmei, Taiwan facility to assets held for sale. The Yangmei facility was sold during the fourth quarter of 2012 and a gain of approximately $1.5 million was realized. In the fourth quarter of 2012, the company entered into a binding agreement for the future sale of its Des Plaines, Illinois property for $6.0 million on an installment basis over a three year period.

Note 11 - Asset Impairments

12 Months Ended

Dec. 27, 2014

Disclosure Text Block Supplement [Abstract]

11. Asset Impairments

During 2014, the company recorded an asset impairment charge of approximately $0.3 million within selling, general and administrative expenses. This charge reflects the write-down of assets from project cancellations. The charge was recognized as an “other” charge for segment reporting purposes. The carrying values of the company’s assets held for sale are $5.5 million for the previously closed manufacturing facility in Des Plaines, Illinois as of December 27, 2014 and December 28, 2013.

The company recorded no impairments of assets during 2013.

During 2012, the company recorded an asset impairment charge of approximately $0.5 million within selling, general and administrative expenses. This charge reflects the write-down of the company’s previously closed manufacturing facility in Dünsen, Germany to its net selling price. The charge was recognized as an “other” charge for segment reporting purposes. The Dünsen facility was sold during the fourth quarter of 2012. Also, during the third quarter of 2012, the company reclassified its Yangmei, Taiwan facility to assets held for sale. The Yangmei facility was sold during the fourth quarter of 2012 and a gain of approximately $1.5 million was realized. In the fourth quarter of 2012, the company entered into a binding agreement for the future sale of its Des Plaines, Illinois property for $6.0 million on an installment basis over a three year period.