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v3.23.1

Note 5 - Revenue From Contracts With Customers (Details Textual) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 USD ($)
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease), Total | $ 0

X
- Definition Amount of increase (decrease) in allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration