Note 1 - Nature of Business and Significant Accounting Policies - Other Current Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Indemnification assets | $ 875 | $ 875 |
| Letters of credit | 360 | |
| Other receivables | 325 | 1,048 |
| Other | 215 | 286 |
| Total other current assets | $ 1,415 | $ 2,569 |
| X | ||||||||||
- Definition Letters of credit that the company has extended to customers. No definition available.
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| X | ||||||||||
- Definition Amount of assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of current assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount due from parties in nontrade transactions, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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