Note 13 - Other Financial Statement Information (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31, 2025			December 31, 2024
Raw materials	$	316		$	302
Work in process		9			5
Finished goods		—			31
Total gross inventory		325			338
Reserve for excess and obsolete inventory		(84	)		(71	)
Inventories, net	$	241		$	267

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	March 31, 2025			December 31, 2024
Intellectual property	$	214		$	214
Gross intangible assets		214			214
Less: Accumulated amortization		(184	)		(178	)
Intangible assets, net	$	30		$	36