SUPPLEMENTAL BALANCE SHEET INFORMATION

Cash

The composition of the Company’s cash was as follows:

	September 29 ,		December 31,
	2019		2018
Cash	$	6,824	$	25,583
Restricted cash		265		351
Total	$	7,089	$	25,934

As of

September 29, 2019

and

December 31, 2018,

restricted cash included

$184

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

nine

-month period ended

September 29, 2019,

grant proceeds of

$72

were realized to income. As of

September 29, 2019

and

December 31, 2018,

restricted cash included euro-denominated deposits of

$81

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.

Inventories

Inventories are stated at the lower of cost or market, net of obsolescence reserves, with cost determined under the

first

-in,

first

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

	September 29,		December 31,
	2019		2018
Raw materials	$	19,004	$	13,274
Work in process		2,998		2,016
Finished goods		10,394		7,553
Total	$	32,396	$	22,843

Property, Equipment and Improvements, Net

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

	September 29,			December 31,
	2019			2018
Land	$	1,273		$	123
Buildings and leasehold improvements		15,257			8,267
Machinery and equipment		54,530			51,261
Furniture and fixtures		2,176			2,058
Computer hardware and software		6,672			5,590
Construction in process		4,757			4,302
		84,665			71,601
Less: Accumulated depreciation		(62,066	)		(60,857	)
Property, equipment and improvements, net	$	22,599		$	10,744

Depreciation expense for property, equipment and improvements was as follows:

	Three-month period ended				Nine -month period ended
	September 29 ,		September 30 ,		September 29 ,		September 30 ,
	2019		2018		2019		2018
Depreciation expense	$	586	$	496	$	1,548	$	1,476

Goodwill

The following table summarizes the goodwill activity by segment for the

nine

-month periods ended

September 29, 2019

and

September 30, 2018:

	Battery & Energy			Communications
	Products			Systems		Total
Balance – December 31, 2017	$	8,965		$	11,493	$	20,458
Effect of foreign currency translation		(257	)		-		(257	)
Balance – September 30, 2018		8,708			11,493		20,201
Effect of foreign currency translation		(92	)		-		(92	)
Balance – December 31, 2018		8,616			11,493		20,109
Acquisition of SWE		6,474			-		6,474
Effect of foreign currency translation		(210	)		-		(210	)
Balance – September 29, 2019	$	14,880		$	11,493	$	26,373

Other Intangible Assets, Net

The composition of other intangible assets was:

	at September 29 , 2019
			Accumulated
	Cost		Amortization		Net
Trademarks	$	3,401	$	-	$	3,401
Customer relationships		8,907		4,586		4,321
Patents and technology		5,452		4,810		642
Distributor relationships		377		377		-
Trade name		1,485		166		1,319
Total	$	19,622	$	9,939	$	9,683

	at December 31, 201 8
			Accumulated
	Cost		Amortization		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	$	16,109	$	9,605	$	6,504

The increase in the carrying value of other intangible assets from

December 31, 2018

September 29, 2019

reflects the preliminary valuation of identifiable intangible assets acquired in the Company’s acquisition of SWE. The table below summarizes the estimated fair value, useful life and annual amortization for the identifiable intangible assets resulting from the preliminary valuation analysis. Amortization for the SWE intangible assets is recognized as selling, general and administrative expense.

					Annual
			Estimated		Estimated
	Estimated Fair		Useful Lives		Amortization
	Value		in Years		Expense
Customer relationships	$	2,522		15	$	168
Trade name		1,127		15		75
Total	$	3,649			$	243

The remaining change in the carrying value of other intangible assets from

December 31, 2018

September 29, 2019

is the result of the effect of foreign currency translations.

Amortization expense for other intangible assets was as follows:

	Three-month period ended				Nine -month period ended
	September 29 ,		September 30 ,		September 29 ,		September 30 ,
	2019		2018		2019		2018
Amortization included in:
Research and development	$	32	$	36	$	98	$	111
Selling, general and administrative		116		61		274		189
Total amortization expense	$	148	$	97	$	372	$	300