Note 2 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Balance as of December 31, 2022	$	984
Amounts accrued		237
Write-offs charged against the allowance		(4	)
Balance as of March 31, 2023	$	1,217

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2023		2022
Raw materials, net of reserve	$	741	$	1,671
Work-in-process		738		596
Total inventories	$	1,479	$	2,267