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Business Realignment and Corporate Headquarter Relocation (Schedule of Restructuring and Related Costs) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total business realignment charges |  | $ 323 | $ 309 | $ 494 | $ 2,211
Cost of Goods Sold [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total business realignment charges |  | 304 | 108 | 394 | 287
Selling, General and Administrative Expenses [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total business realignment charges |  | 19 | 160 | 100 | 824
Design and Development [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total business realignment charges |  |  | 41 |  | 1,100
Electronics [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total business realignment charges | [1] | 56 |  | 56 | 1,180
Electronics [Member] | Cost of Goods Sold [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Severance costs |  | 56 | 0 | 56 |
Electronics [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Severance costs |  |  |  |  | 196
Electronics [Member] | Design and Development [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Severance costs |  |  |  |  | 984
PST Segment [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Total business realignment charges | [2] | 267 | 309 | 438 | 1,031
PST Segment [Member] | Cost of Goods Sold [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Severance costs |  | 248 | 108 | 338 | 287
PST Segment [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Severance costs |  | $ 19 | 160 | $ 100 | 628
PST Segment [Member] | Design and Development [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Severance costs |  |  | $ 41 |  | $ 116
[1] | Severance costs for the three and six months ended June 30, 2017 related to cost of goods sold (“COGS”) were $56. There were no severance costs for the three months ended June 30, 2016. Severance costs for the six months ended June 30, 2016 related to selling, general and administrative (“SG&A”) and design and development (“D&D”) were $196 and $984, respectively.
[2] | Severance costs for the three months ended June 30, 2017 related to COGS and SG&A were $248 and $19, respectively. Severance costs for the three months ended June 30, 2016 related to COGS, SG&A and D&D were $108, $160 and $41, respectively.

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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 + Details
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