Note 4 - Acquisition - Unaudited Pro Forma Financial Information (Details) - Honeywell International, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022		Mar. 31, 2021
Net sales	$ 167,025		$ 126,345
Net income	$ 8,150	[1]	$ 13,949
Diluted earnings per share (in dollars per share)	$ 1.10		$ 1.90

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