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Note 1 - General (Details Textual) - Accounting Standards Update 2014-09 [Member] $ in Thousands | 9 Months Ended
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Sep. 30, 2018 USD ($)
Nine Months Ended September 30, 2017 [Member] |
Prior Period Reclassification Adjustment | $ 2,093
Three Months Ended September 30, 2017 [Member] |
Prior Period Reclassification Adjustment | $ 715

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- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
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Period Type: | duration

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- Details
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- Details
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Balance Type: |
Period Type: |

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- Details
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Balance Type: |
Period Type: |