Note 7 - Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2025

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Year Ended December 31,
	2025				2024
	Income		Expense		Income		Expense
GAMCO Investors, Inc.	$	1,458	$	—	$	1,712	$	—
M-tron Industries, Inc.		—		89		—		(57	)
Total	$	1,458	$	89	$	1,712	$	(57	)

	As of December 31,
	2025				2024
	Assets		Liabilities		Assets		Liabilities
GAMCO Investors, Inc.	$	36,175	$	—	$	34,242	$	—
M-tron Industries, Inc.		—		227		—		59
Total	$	36,175	$	227	$	34,242	$	59