Note 6 - Select Balance Sheet and Statement of Operations Information (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,		December 31,
	2022		2021
Raw materials	$	2,964	$	2,368
Work-in-progress		628		1,649
Finished goods		17,727		16,526
Total inventory	$	21,319	$	20,543

Property, Plant and Equipment [Table Text Block]

	Useful Lives	March 31,			December 31,
	(in years)	2022			2021
Lab equipment tooling and molds	4 – 10	$	8,236		$	8,194
Office furniture and equipment	6 – 10		2,012			1,743
Leasehold improvements	up to 10		37			1,839
Computers and software	3		1,780			1,939
Vehicles	5 – 7		1,781			37
Demo units	5		114			114
Total property and equipment			13,960			13,866
Less: Accumulated depreciation			(11,377	)		(11,197	)
Total property and equipment, net		$	2,583		$	2,669

Schedule of Other Current Assets [Table Text Block]

	March 31,		December 31,
	2022		2021
Government remittances (1)	$	1,799	$	1,322
Consideration receivable from sale of subsidiaries		1,251		1,405
Deferred financing costs		223		223
Sundry assets and miscellaneous		866		808
Total other current assets	$	4,139	$	3,758

Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block]

	March 31,		December 31,
	2022		2021
Payroll and related expense	$	1,940	$	1,770
Accrued expenses		6,303		6,584
Commission accrual		3,780		4,529
Sales and consumption taxes		6,795		6,629
Total accrued expenses and other current liabilities	$	18,818	$	19,512

Schedule of Product Warranty Liability [Table Text Block]

	March 31,			December 31,
	2022			2021
Balance as of the beginning of the period	$	1,753		$	1,639
Warranties issued during the period		189			1,231
Warranty costs incurred during the period		(383	)		(1,117	)
Balance at the end of the period	$	1,559		$	1,753
Current		1,127			1,245
Long-term		432			508
Total	$	1,559		$	1,753

Schedule of Finance Expenses [Table Text Block]

	Three Months Ended March 31,
	2022		2021
Interest expense	$	858	$	1,138
Accretion on long-term debt and amortization of fees		65		747
Total finance expenses	$	923	$	1,885