Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Minimum [Member] | ||||
| Finite-Lived Intangible Asset, Useful Life | 2 years | |||
| Maximum [Member] | ||||
| Finite-Lived Intangible Asset, Useful Life | 9 years | |||
| Allowance for Doubtful Accounts Receivable, Current | $ 1,300 | $ 1,300 | ||
| Asset Impairment Charges | $ 3,363 | $ 3,363 | ||
| X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| 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.
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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