2. Supplementary Financial Information

Inventories

The following table presents details regarding our inventories:


	March 31,
	2020		2019
	(In thousands)
Materials and supplies	$	1,380	$	1,517
Work in process		162		356
Finished goods		1,498		1,043
	$	3,040	$	2,916

Property and Equipment, net

The following table presents details of our property and equipment, net:


	March 31,
	2020		2019
	(In thousands)
Equipment	$	7,134	$	6,444
Leasehold improvements		3,009		2,939
Accumulated depreciation		(8,201)		(7,418)
	$	1,942	$	1,965

Depreciation expense was approximately $848,000, $854,000 and $819,000 in Fiscal 2020, Fiscal 2019 and Fiscal 2018, respectively. Approximately $291,000, $286,000 and $288,000 of the depreciation expense was recorded to cost of revenues, and approximately $557,000, $568,000 and $531,000 was recorded to operating expenses in Fiscal 2020, Fiscal 2019 and Fiscal 2018, respectively, in the consolidated statements of operations.

Intangible Assets

The following table presents details regarding our intangible assets:


	March 31, 2020						March 31, 2019
	Gross						Gross
	Carrying		Accumulated		Net Book		Carrying		Accumulated		Net Book
	Amount		Amortization		Value		Amount		Amortization		Value
	(In thousands)
Technology	$	1,856	$	(1,856)	$	—	$	1,856	$	(1,856)	$	—
Customer contracts / relationships		4,250		(1,188)		3,062		750		(750)		—
Trade names and non-compete agreements		1,320		(1,163)		157		1,110		(1,110)		—
Capitalized software development costs		6,400		(3,482)		2,918		5,768		(2,482)		3,286
Total	$	13,826	$	(7,689)	$	6,137	$	9,484	$	(6,198)	$	3,286

Amortization expense for intangible assets subject to amortization was approximately $1.5 million, $1.1 million and $726,000 for Fiscal 2020, Fiscal 2019 and Fiscal 2018, respectively. Approximately $736,000, $850,000 and $638,000 of the intangible asset amortization was recorded to cost of revenues, and approximately $757,000, $275,000 and $88,000 was recorded to amortization expense for Fiscal 2020, Fiscal 2019 and Fiscal 2018, respectively, in the consolidated statements of operations. The weighted average remaining useful lives of the intangible assets as of March 31, 2020 is 5.3 years.

We do not have any intangible assets with indefinite useful lives. Our net customer contracts/relationships have a useful life of 6 years beginning Fiscal 2020. Our net tradenames and non-compete agreements have a useful life of 3 years beginning Fiscal 2020. Our net capitalized software development costs of approximately $2.9 million and $3.3 million primarily consisted of our Oracle Enterprise Resource Planning (“ERP”) system design and implementation of approximately $1.9 million and $2.2 million as of March 31, 2020 and 2019, respectively, which has a useful life of 10 years beginning Fiscal 2019.

As of March 31, 2020, the future estimated amortization expense is as follows:


Year Ending March 31,
(In thousands)
2021	$	1,419
2022		1,234
2023		1,010
2024		879
2025		849
Thereafter		746
	$	6,137

Goodwill

The following table presents the carrying value of our goodwill by reportable segments for Fiscal 2018, Fiscal 2019 and Fiscal 2020:


	Roadway		Transportation		Ag & Weather
	Sensors		Systems		Analytics		Total
	(In thousands)
Balance—March 31, 2018
Goodwill	$	8,214	$	14,906	$	2,168	$	25,288
Accumulated impairment losses		—		(7,970)		(2,168)		(10,138)
	$	8,214	$	6,936	$	—	$	15,150
Balance—March 31, 2019
Goodwill	$	8,214	$	14,906	$	2,168	$	25,288
Accumulated impairment losses		—		(7,970)		(2,168)		(10,138)
	$	8,214	$	6,936	$	—	$	15,150
Balance—March 31, 2020
Goodwill	$	8,214	$	14,906	$	2,168	$	25,288
Acquired goodwill (see Note 11)		—		5,440		—		5,440
Accumulated impairment losses		—		(7,970)		(2,168)		(10,138)
	$	8,214	$	12,376	$	—	$	20,590

Warranty Reserve Activity

The following table presents activity with respect to the warranty reserve:


	Year Ended March 31,
	2020		2019		2018
	(In thousands)
Balance at beginning of fiscal year	$	463	$	403	$	278
Additions charged to cost of sales		649		647		623
Warranty claims		(696)		(587)		(498)
Balance at end of fiscal year	$	416	$	463	$	403

Earnings Per Share

The following table sets forth the computation of basic and diluted loss from continuing operations per share:


	Year Ended March 31,
	2020		2019		2018
	(In thousands, except per share amounts)
Numerator:
Loss from continuing operations	$	(5,610)	$	(7,816)	$	(3,768)
Gain on sale of discontinued operation, net of tax		—		—		242
Net loss	$	(5,610)	$	(7,816)	$	(3,526)
Denominator:
Weighted average common shares used in basic and diluted computation		39,012		33,266		32,776
Loss from continuing operations per share:
Basic	$	(0.14)	$	(0.23)	$	(0.12)
Diluted	$	(0.14)	$	(0.23)	$	(0.12)

The following instruments were excluded for purposes of calculating weighted average common share equivalents in the computation of diluted loss per share from continuing operations as their effect would have been anti‑dilutive:

Year Ended March 31,

(In thousands)

Stock options

Restricted stock units