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Note 4 - Exit and Disposal Activities (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Restructuring and Related Costs [Table Text Block] |
|  |  |  |  |  | Costs Incurred |  |  |  |  |
|  |  |  |  |  | Year |  |  | Total |  |  | Remaining |
|  | Total |  |  | Ended |  |  | Recognized |  |  | Costs to be |
|  | Program |  |  | Dec. 31, 2019 |  |  | to date |  |  | Recognized |
Severance and benefit related costs |  | $ | 1,350 |  |  | $ | 0 |  |  | $ | 1,350 |  |  | $ | 0 |
Asset impairments |  |  | 188 |  |  |  | 0 |  |  |  | 188 |  |  |  | 0 |
Equipment relocation costs |  |  | 1,826 |  |  |  | 38 |  |  |  | 1,826 |  |  |  | 0 |
Other |  |  | 1,609 |  |  |  | 471 |  |  |  | 1,546 |  |  |  | 63 |
|  | $ | 4,973 |  |  | $ | 509 |  |  | $ | 4,910 |  |  | $ | 63 |
Disposal Groups, Including Discontinued Operations [Table Text Block] |
|  | December 31, |
|  | 2019 |  |  | 2018 |
Property, plant and equipment |  | $ | 13,346 |  |  | $ | 11,207 |
Accumulated depreciation |  | $ | (11,113 | ) |  | $ | (9,733 | )
Property, plant and equipment, net |  | $ | 2,233 |  |  | $ | 1,474 |

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