Note

- Supplemental Balance Sheet Information

a.	Cash and Restricted Cash

The Company had cash and restricted cash totaling

$7,405

and

$25,934

as of

December 31, 2019

and

2018,

respectively.

	December 31
	201 9		201 8
Cash	$	7,135	$	25,583
Restricted cash		270		351
Total	$	7,405	$	25,934

As of

December 31, 2019

and

December 31, 2018,

restricted cash included

$188

and

$266,

respectively, relating to a government grant awarded in the People’s Republic of China to fund specified technological research and development initiatives. The grant proceeds are realized to income as a direct offset to expense as the related expenditures are incurred. For the year ended

December 31, 2019,

grant proceeds of

$78

were realized to income. As of

December 31, 2019

and

December 31, 2018,

restricted cash included euro-denominated deposits of

$82

and

$85,

respectively, withheld by the Dutch tax authorities and

third

-party VAT representatives in connection with a previously utilized logistics arrangement in the Netherlands. Restricted cash is included as a component of the cash balance for purposes of the consolidated statements of cash flows.

b. Inventory, Net

Inventories are stated at the lower of cost or net realizable value with cost determined under the

first

-in,

first

-out (FIFO) method. The composition of inventories, net was:

	December 31
	2019		2018
Raw materials	$	18,485	$	13,274
Work in process		2,548		2,016
Finished products		8,726		7,553
Total	$	29,759	$	22,843

Property, Plant and Equipment

Major classes of property, plant and equipment consisted of the following:

	December 31
	2019			2018
Land	$	1,273		$	123
Buildings and leasehold improvements		8,148			8,267
Machinery and equipment		62,562			51,261
Furniture and fixtures		2,112			2,058
Computer hardware and software		6,528			5,590
Construction in progress		4,730			4,302
		85,353			71,601
Less – Accumulated depreciation		(62,828	)		(60,857	)
Total	$	22,525		$	10,744

Depreciation expense was

$2,220

and

$1,972

for the years ended

December 31, 2019

and

2018,

respectively.

Goodwill and Other Intangible Assets

The Company performed its annual impairment tests of goodwill and other indefinite-lived intangible assets as of the

first

day of the fiscal

fourth

quarter of

2019

and

2018.

The Company performed a quantitative impairment test as of

September 30, 2019

of its

five

identified goodwill reporting units including a reporting unit for SWE (Note

) which is a component of the Battery & Energy Products segment. The fair value for the reporting units could

not

be determined using readily available quoted Level

inputs or Level

inputs that were observable in active markets. Therefore, we used a discounted cash flow model to estimate the fair value of the reporting units, using Level

inputs. To estimate the fair value of the reporting units, we used significant estimates and judgments, including an assessment of our future revenue prospects, revenue growth rates and profit margins based on internal forecasts, industry and market based terminal growth rates, inputs to the weighted-average cost of capital used to discount future cash flows, and earnings multiples.

The Company performed a quantitative impairment test of its

four

other indefinite-lived intangible assets (trademarks). The fair value of our trademarks could

not

be determined using readily available quoted Level

inputs or Level

inputs that were observable in active markets. Therefore, we used a relief from royalty approach to estimate the fair value of our trademarks, using Level

inputs. Significant estimates and judgments included an assessment of our future revenue prospects, industry and market based terminal growth rates, inputs to the weighted-average cost of capital used to discount future cash flows, and royalty rates based on external market data.

As a result of the impairment tests performed for

2019

and

2018,

we determined that

impairments existed. Fair value exceeded carrying value for all reporting units and trademarks by more than

10%,

except for the goodwill test as of

September 30, 2019

for SWE which was acquired

five

months prior.

There is a possibility that our goodwill and other intangible assets could be impaired in the future should there be a significant change in our internal forecasts and other assumptions used in our impairment analysis.

The following table summarizes the goodwill activity by segment for the years ended

December 31, 2019

and

2018:

	Battery & Energy Products			Communications Systems		Total
Balance – January 1, 2018	$	8,965		$	11,493	$	20,458
Effect of foreign currency translation		(349	)		-		(349	)
Balance – December 31, 2018		8,616			11,493		20,109
Acquisition of SWE		6,534			-		6,534
Effect of foreign currency translation		110			-		110
Balance – December 31, 2019	$	15,260		$	11,493	$	26,753

The composition of intangible assets was:

	December 31, 201 9
	Cost		Accumulated amortization		Net
Trademarks	$	3,403	$	-	$	3,403
Customer relationships		9,080		4,721		4,359
Patents and technology		5,521		4,869		652
Distributor relationships		377		377		-
Trade name		1,511		204		1,307
Total other intangible assets	$	19,892	$	10,171	$	9,721

	December 31, 201 8
	Cost		Accumulated a mortization		Net
Trademarks	$	3,405	$	-	$	3,405
Customer relationships		6,471		4,392		2,079
Patents and technology		5,486		4,725		761
Distributor relationships		377		377		-
Trade name		370		111		259
Total other intangible assets	$	16,109	$	9,605	$	6,504

The change in the cost value of other intangible assets is a result of the SWE acquisition (Note

) and the effect of foreign currency translations.

Amortization of other intangible assets was included in the following financial statement captions:

	Year ended December 31
	201 9		2018
Research and development expense	$	130	$	147
Selling, general and administrative expense		395		250
Total	$	525	$	397

Future amortization expense of amortizable intangible assets will be approximately

$360,

$341,

$326,

$323

and

$313

for the

five

fiscal years ending

December 31, 2020

through

2024,

respectively.