Note 2 – Details of Certain Financial Statement Components

The following tables provide details of selected balance sheet items:


	December 31,		December 31,
	2020		2019
Inventories	(in thousands)
Raw materials	$	520	$	540
Work-in-process		246		253
Finished goods		100		134
Total inventories	$	866	$	927


	December 31,		December 31,
	2020		2019
Property, plant and equipment, net	(in thousands)
Furniture, machinery and equipment	$	1,662	$	1,626
Leasehold improvements		538		527
		2,200		2,153
Less: accumulated depreciation		(1,793)		(1,520)
Total property, plant and equipment, net	$	407	$	633

Depreciation expense totaled $233 thousand and $225 thousand in 2020 and 2019, respectively.


	December 31,		December 31,
	2020		2019
Intangible assets, net	(in thousands)
Patents and trademarks	$	658	$	573
Less: accumulated amortization		(463)		(402)
Total intangibles, net	$	195	$	171

Amortization expense totaled $60 thousand and $41 thousand in 2020 and 2019, respectively. Future amortization on existing intangibles over the next five years is as follows:


Years ending December 31,	(in thousands)
2021	$	65
2022		54
2023		42
2024		27
2025		7
Thereafter		—
	$	195


	December 31,		December 31,
	2020		2019
Accrued liabilities	(in thousands, except par value)
Accrued warranty	$	7	$	9
Accrued wages and benefits		180		168
Accrued taxes, other than income taxes		—		3
Accrued vacation		110		83
Accrued other		46		39
Total accrued liabilities	$	343	$	302