Note 6 - Variable Interest Entities - VIEs (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Cash and cash equivalents		$ 41,571	$ 41,585
Accounts receivable, net of reserves of $52 and $52, respectively		460	493
Total current assets		42,846	42,642
Total assets		43,284	43,145
Total liabilities		1,378	1,905
Variable Interest Entity, Not Primary Beneficiary [Member]
Total assets		612	603
On-balance sheet (a)	[1]	4	4
Off-balance sheet		0	0
Total		4	4
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents		3,138	3,066
Accounts receivable, net of reserves of $52 and $52, respectively		17	17
Total current assets		3,155	3,083
Total assets		3,155	3,083
Total liabilities		$ 0	$ 0

[1] As of September 30, 2025 and December 31, 2024, our investment in LGL Nevada was recorded in Other assets in the Condensed Consolidated Balance Sheets.