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Note 3 - Business Acquisition (Details Textual) - Honeywell International, Inc. [Member] - USD ($)
$ in Millions
12 Months Ended
Mar. 15, 2021
Jan. 24, 2021
Dec. 31, 2021
Dec. 31, 2020
Business Combination, Consideration Transferred, Total $ 207.0 $ 212.0    
Business Combination, Consideration Transferred, Liabilities Incurred $ 5.4      
Business Acquisition, Percentage of Voting Interests Acquired 100.00%      
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) 25,000      
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual     $ 179.0  
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual     16.5  
Business Combination, Acquisition Related Costs     11.9 $ 0.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables, Allowance for Doubtful Accounts $ 0.6      
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory     $ 3.5