SUPPLEMENTAL BALANCE SHEET INFORMATION

Cash

The Company had cash and restricted cash totaling

$21,240

and

$25,934

as of

March 31, 2019

and

December 31, 2018,

respectively.

	March 31,		December 31,
	201 9		201 8
Cash		$20,929		$25,583
Restricted Cash		311		351
Total		$21,240		$25,934

As of

March 31, 2019

and

December 31, 2018,

restricted cash included

$228

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 quarter ended

March 31, 2019,

grant proceeds of approximately

$38

were realized to income.

As of

March 31, 2019

and

December 31, 2018,

restricted cash includes euro-denominated deposits of

$83

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:

	March 31,		December 31,
	2019		2018
Raw Materials	$	17,201	$	13,274
Work In Process		2,067		2,016
Finished Goods		8,638		7,553
Total	$	27,906	$	22,843

Property, Equipment and Improvements, Net

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

	March 3 1 ,			December 31,
	201 9			201 8
Land	$	123		$	123
Buildings and Leasehold Improvements		8,284			8,267
Machinery and Equipment		51,772			51,261
Furniture and Fixtures		2,073			2,058
Computer Hardware and Software		5,889			5,590
Construction In Process		5,478			4,302
		73,619			71,601
Less: Accumulated Depreciation		(61,221	)		(60,857	)
Property, Equipment and Improvements, Net	$	12,398		$	10,744

Depreciation expense for property, equipment and improvements was

$447

and

$484

for the

three

-month periods ended

March 31, 2019

and

April 1, 2018,

respectively.

Goodwill

The following table summarizes the goodwill activity by segment for the

three

-month periods ended

March 31, 2019

and

April 1, 2018:

	Battery & Energy			Communi- cations
	Products			Systems		Total
Balance - December 31, 2017	$	8,965		$	11,493	$	20,458
Effect of Foreign Currency Translation		240			-		240
Balance – April 1, 2018		9,205			11,493		20,698
Effect of Foreign Currency Translation		(589	)		-		(589	)
Balance - December 31, 2018		8,616			11,493		20,109
Effect of Foreign Currency Translation		142			-		142
Balance – March 31, 2019	$	8,758		$	11,493	$	20,251

Other

Intangible Assets, Net

The composition of other intangible assets was:

	at March 31, 2019
			Accumulated
	Cost		Amortization		Net
Trademarks	$	3,407	$	-	$	3,407
Customer Relationships		6,530		4,453		2,077
Patents and Technology		5,510		4,766		744
Distributor Relationships		377		377		-
Trade Name		379		123		256
Total Other Intangible Assets	$	16,203	$	9,719	$	6,484

	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 Other Intangible Assets	$	16,109	$	9,605	$	6,504

The change in the cost value of total intangible assets from

December 31, 2018

March 31, 2019

is a result of the effect of foreign currency translations.

Amortization expense for intangible assets was

$92

and

$102

for the

three

-month periods ended

March 31, 2019

and

April 1, 2018,

respectively. Amortization included in research and development expenses was

$33

and

$38

for the

three

-month periods ended

March 31, 2019

and

April 1, 2018,

respectively. Amortization included in selling, general and administrative expenses was

$59

and

$64

for the

three

-month periods ended

March 31, 2019

and

April 1, 2018,

respectively.