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v3.19.2

Note 1 - General (Details Textual) $ in Thousands | Jan. 01, 2019 USD ($)
--- | ---
Accounting Standards Update 2018-11 [Member] |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ 0
Accounting Standards Update 2017-08 [Member] |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ 0

X
- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
Name: | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201811Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201708Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |