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Note 8 - Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | 201 7 |  |  | 201 6 |
|  | Historical Cost |  |  | Accumulated Amortization |  |  | Historical C ost |  |  | Accumulated Amortization |
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 7,966 |  |  | $ | 4,791 |  |  | $ | 11,885 |  |  | $ | 4,650 |
Technology and drawings |  |  | 6,758 |  |  |  | 3,121 |  |  |  | 6,741 |  |  |  | 2,804 |
Other intangibles |  |  | 1,866 |  |  |  | 1,021 |  |  |  | 1,723 |  |  |  | 942 |
Total finite-lived intangible ass ets |  |  | 16,590 |  |  |  | 8,933 |  |  |  | 20,349 |  |  |  | 8,396 |
Goodwill |  |  | 27,551 |  |  |  | - |  |  |  | 28,030 |  |  |  | - |
Trade names and trademarks |  |  | 2,710 |  |  |  | - |  |  |  | 2,888 |  |  |  | - |
Total |  | $ | 46,851 |  |  | $ | 8,933 |  |  | $ | 51,267 |  |  | $ | 8,396 |
Schedule of Goodwill [Table Text Block] |
|  | Goodwill |
Balance at December 31, 2015 |  | $ | 24,559 |
Acquisitions |  |  | 5,187 |
Impairment |  |  | (1,800 | )
Foreign currency |  |  | 84 |
Balance at December 31, 201 6 |  |  | 28,030 |
Acquisitions |  |  | - |
Impairment |  |  | (925 | )
Foreign currency |  |  | 446 |
Balance at December 31, 201 7 |  | $ | 27,551 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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