Note 3 - Business Acquisition - Unaudited Pro Forma Financial Information (Details) - Honeywell International, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020
Net sales	$ 552,905		$ 482,562
Net income	$ 40,248	[1]	$ 41,726
Diluted earnings per share (in dollars per share)	$ 5.43		$ 5.69

[1] The Acquisition-related costs mentioned above are excluded from the unaudited pro forma net income.