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v3.20.2

Note 4 - Goodwill and Intangible Assets (Details Textual) | 9 Months Ended
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Sep. 30, 2020
Minimum [Member] |
Finite-Lived Intangible Asset, Useful Life (Month) | 11 months
Maximum [Member] |
Finite-Lived Intangible Asset, Useful Life (Month) | 15 years

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. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |