Note 7 - Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Three Months Ended March 31,
	2025					2024
	Income		Expense			Income		Expense
GAMCO Investors, Inc.	$	348	$	—		$	408	$	—
M-tron Industries, Inc.		—		(14	)		—		(14	)
Total	$	348	$	(14	)	$	408	$	(14	)

	March 31, 2025				December 31, 2024
	Assets		Liabilities		Assets		Liabilities
GAMCO Investors, Inc.	$	34,702	$	—	$	34,242	$	—
M-tron Industries, Inc.		—		68		—		59
Total	$	34,702	$	68	$	34,242	$	59