Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

Balance as of December 31, 2021	$	620
Amounts accrued		398
Write-offs charged against the allowance		(34	)
Balance as of December 31, 2022	$	984
Amounts accrued		153
Write-offs charged against the allowance		(436	)
Balance as of December 31, 2023	$	701

Schedule of Inventory, Current [Table Text Block]

	December 31,		December 31,
	2023		2022
Raw materials	$	2,063	$	1,671
Work-in-process		504		596
Total inventories	$	2,567	$	2,267

Property, Plant and Equipment [Table Text Block]

	December 31,
	2023			2022
Equipment	$	334		$	138
Leasehold improvements		298			197
Furniture and fixtures		205			199
Other depreciable assets		135			124
Total property and equipment		972			658
Less: accumulated depreciation and amortization		(473	)		(457	)
Net property and equipment	$	499		$	201

Schedule of Estimated Useful Lives [Table Text Block]

Asset class	Useful life assigned (in years)
Equipment	3 – 5
Furniture and fixtures	3 – 5
Leasehold improvements	Shorter of 5 years or term of lease