Note 7 - Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Year Ended December 31,
	2024					2023
	Income		Expense			Income		Expense
GAMCO Investors, Inc.	$	1,712	$	—		$	1,677	$	—
M-tron Industries, Inc.		—		(57	)		—		20
Total	$	1,712	$	(57	)	$	1,677	$	20

	As of December 31,
	2024				2023
	Assets		Liabilities		Assets		Liabilities
GAMCO Investors, Inc.	$	34,242	$	—	$	32,568	$	—
M-tron Industries, Inc.		—		59		—		—
Total	$	34,242	$	59	$	32,568	$	—