Note 3 - Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Sep. 30, 2015 |
Dec. 31, 2014 |
|
| Patents [Member] | Minimum [Member] | ||
| Useful Lives | 8 years | |
| Patents [Member] | Maximum [Member] | ||
| Useful Lives | 18 years | |
| Patents [Member] | ||
| Gross Carrying Amount | $ 516 | $ 512 |
| Accumulated Amortization | (194) | (168) |
| Net Carrying Amount | $ 322 | 344 |
| Computer Software, Intangible Asset [Member] | ||
| Useful Lives | 3 years | |
| Gross Carrying Amount | $ 379 | 375 |
| Accumulated Amortization | (360) | (319) |
| Net Carrying Amount | $ 19 | 56 |
| Customer Relationships [Member] | ||
| Useful Lives | 12 years | |
| Gross Carrying Amount | $ 3,370 | 3,370 |
| Accumulated Amortization | (1,587) | (1,335) |
| Net Carrying Amount | $ 1,783 | 2,035 |
| Permits [Member] | ||
| Useful Lives | 10 years | |
| Gross Carrying Amount | $ 545 | 545 |
| Accumulated Amortization | (359) | (318) |
| Net Carrying Amount | 186 | 227 |
| Gross Carrying Amount | 4,810 | 4,802 |
| Accumulated Amortization | (2,500) | (2,140) |
| Net Carrying Amount | $ 2,310 | $ 2,662 |
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|