Note 7 - Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2026

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Three Months Ended September 30,
	2026				2025
	Income		Expense		Income		Expense
GAMCO Investors, Inc.	$	670	$	—	$	177	$	—
M-tron Industries, Inc.		—		40		—		40
Alpha G Investment Management, Inc.		—		19		—		—
Total	$	670	$	59	$	177	$	40

	Nine Months Ended September 30,
	2026				2025
	Income		Expense		Income		Expense
GAMCO Investors, Inc.	$	1,386	$	—	$	891	$	—
M-tron Industries, Inc.		—		120		—		48
Alpha G Investment Management, Inc.		—		85		—		—
Total	$	1,386	$	205	$	891	$	48

	September 30, 2026				December 31, 2025
	Assets		Liabilities		Assets		Liabilities
GAMCO Investors, Inc.	$	84,045	$	—	$	36,175	$	—
M-tron Industries, Inc.		—		338		—		227
Alpha G Investment Management, Inc.		—		85		—		—
Total	$	84,045	$	423	$	36,175	$	227