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Note 4 - Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2016
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  |  |  |  |  |  | June 30, 2016 |  |  | December 31, 2015 |
|  | Useful Lives (Years) |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Intangibles (amount in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patent |  | 8 | - | 18 |  |  | $ | 566 |  |  | $ | (259 | ) |  | $ | 307 |  |  | $ | 539 |  |  | $ | (203 | ) |  | $ | 336 |
Software |  |  | 3 |  |  |  |  | 395 |  |  |  | (370 | ) |  |  | 25 |  |  |  | 395 |  |  |  | (364 | ) |  |  | 31 |
Customer relationships |  |  | 12 |  |  |  |  | 3,370 |  |  |  | (1,822 | ) |  |  | 1,548 |  |  |  | 3,370 |  |  |  | (1,671 | ) |  |  | 1,699 |
Permit |  |  | 10 |  |  |  |  | 545 |  |  |  | (400 | ) |  |  | 145 |  |  |  | 545 |  |  |  | (373 | ) |  |  | 172 |
Total |  |  |  |  |  |  | $ | 4,876 |  |  | $ | (2,851 | ) |  | $ | 2,025 |  |  | $ | 4,849 |  |  | $ | (2,611 | ) |  | $ | 2,238 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Year |  | Amount (In thousands) |
2016 (remaining) |  | $ | 201 |
2017 |  |  | 369 |
2018 |  |  | 335 |
2019 |  |  | 252 |
2020 |  |  | 217 |
|  | $ | 1,374 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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