Note 7 - Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Three Months Ended June 30,
	2026				2025
	Income		Expense		Income		Expense
GAMCO Investors, Inc.	$	370	$	—	$	366	$	—
M-tron Industries, Inc.		—		40		—		22
Alpha G Investment Management, Inc.		—		66		—		—
Total	$	370	$	106	$	366	$	22

	Six Months Ended June 30,
	2026				2025
	Income		Expense		Income		Expense
GAMCO Investors, Inc.	$	716	$	—	$	714	$	—
M-tron Industries, Inc.		—		80		—		8
Alpha G Investment Management, Inc.		—		66		—		—
Total	$	716	$	146	$	714	$	8

	June 30, 2026				December 31, 2025
	Assets		Liabilities		Assets		Liabilities
GAMCO Investors, Inc.	$	41,536	$	—	$	36,175	$	—
M-tron Industries, Inc.		—		376		—		227
Alpha G Investment Management, Inc.		—		66		—		—
Total	$	41,536	$	442	$	36,175	$	227