Note 6 - Variable Interest Entities - VIEs (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Dec. 31, 2023
Cash and cash equivalents		$ 41,602	$ 40,711
Accounts receivable, net of reserves of $52 and $58, respectively		133	356
Total current assets		42,274	41,566
Total assets		42,485	41,850
Total liabilities		1,482	1,168
Variable Interest Entity, Not Primary Beneficiary [Member]
Total assets		599	588
On-balance sheet (a)	[1]	4	3
Off-balance sheet		0	0
Total		4	3
Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents		3,030	2,932
Accounts receivable, net of reserves of $52 and $58, respectively		14	14
Total current assets		3,044	2,946
Total assets		3,044	2,946
Total liabilities		$ 0	$ 0

[1] As of September 30, 2024 and December 31, 2023, our investment in LGL Nevada was recorded in Other assets in the Condensed Consolidated Balance Sheets.