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Note 3 - Exit and Disposal Activities (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Restructuring and Related Costs [Table Text Block] |
|  |  |  |  |  | Recognized |  |  | Remaining |
|  | Total |  |  | as of |  |  | Costs to be |
|  | Program |  |  | December 31, 2017 |  |  | Recognized |
Severance and benefit-related costs |  | $ | 1,363 |  |  | $ | 1,363 |  |  | $ | 0 |
Asset impairments |  |  | 188 |  |  |  | 188 |  |  |  | 0 |
Equipment relocation costs |  |  | 1,536 |  |  |  | 1,424 |  |  |  | 112 |
Other |  |  | 530 |  |  |  | 30 |  |  |  | 500 |
|  | $ | 3,617 |  |  | $ | 3,005 |  |  | $ | 612 |
Schedule of Restructuring Reserve by Type of Cost [Table Text Block] |
|  | Accrued |  |  |  |  |  |  | Cash |  |  | Accrued |
|  | Balance at |  |  |  |  |  |  | Payments |  |  | Balance at |
|  | Dec. 31, |  |  | 2017 |  |  | or Asset |  |  | Dec. 31, |
|  | 2016 |  |  | Charge |  |  | Write-Offs |  |  | 2017 |
Severance and benefit related costs |  | $ | 427 |  |  | $ | 936 |  |  | $ | (1,218 | ) |  | $ | 145 |
Equipment relocation costs |  |  | 0 |  |  |  | 1,424 |  |  |  | (1,424 | ) |  |  | 0 |
|  | $ | 427 |  |  | $ | 2,360 |  |  | $ | (2,642 | ) |  | $ | 145 |
Disposal Groups, Including Discontinued Operations [Table Text Block] |
|  | December 31, |
|  | 2017 |  |  | 2016 |
Property, plant and equipment |  | $ | 28,874 |  |  | $ | 6,673 |
Accumulated depreciation |  |  | (25,976 | ) |  |  | (5,841 | )
Property, plant and equipment, net |  | $ | 2,898 |  |  | $ | 832 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -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) -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 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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