NOTE 4—BALANCE SHEET DETAIL



	December 31, 2019		March 31, 2019
	(In thousands)
Inventories:
Work-in-progress	$	1,791	$	1,983
Finished goods		2,727		3,690
Inventory at distributors		3		12
	$	4,521	$	5,685



	December 31, 2019		March 31, 2019
	(In thousands)
Accounts receivable, net:
Accounts receivable	$	5,468	$	7,441
Less: Allowances for doubtful accounts and other		(70)		(102)
	$	5,398	$	7,339



	December 31, 2019		March 31, 2019
	(In thousands)
Prepaid expenses and other current assets:
Prepaid tooling and masks	$	988	$	535
Prepaid income taxes		24		39
Escrow deposit		—		1,000
Other receivables		273		321
Other prepaid expenses and other current assets		1,263		605
	$	2,548	$	2,500



	December 31, 2019		March 31, 2019
	(In thousands)
Property and equipment, net:
Computer and other equipment	$	18,156	$	19,086
Software		4,066		4,058
Land		3,900		3,900
Building and building improvements		3,726		3,718
Furniture and fixtures		102		102
Leasehold improvements		872		848
		30,822		31,712
Less: Accumulated depreciation		(22,467)		(22,711)
	$	8,355	$	9,001

Depreciation expense was $293,000 and $317,000 for the three months ended December 31, 2019 and 2018, respectively, and $904,000 and $865,000 for the nine months ended December 31, 2019 and 2018, respectively.



	December 31, 2019		March 31, 2019
	(In thousands)
Other assets:
Non-current deferred income taxes		34		35
Deposits		128		125
	$	162	$	160

The following tables summarize the components of intangible assets and related accumulated amortization balances at December 31, 2019 and March 31, 2019 (in thousands):


	As of December 31, 2019
	Gross Carrying Amount		Accumulated amortization		Net Carrying Amount
Intangible assets:
Product designs	$	590	$	(590)	$	—
Patents		4,220		(1,673)		2,547
Software		80		(80)		—
Total	$	4,890	$	(2,343)	$	2,547


	As of March 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets:
Product designs	$	590	$	(590)	$	—
Patents		4,220		(1,498)		2,722
Software		80		(80)		—
Total	$	4,890	$	(2,168)	$	2,722

Amortization of intangible assets included in cost of revenues was $58,000 and $58,000 for the three months ended December 31, 2019 and 2018, respectively, and $175,000 and $208,000 for the nine months ended December 31, 2019 and 2018, respectively.

As of December 31, 2019, the estimated future amortization expense of intangible assets in the table above is as follows (in thousands):


Fiscal year ending March 31,
2020 (3 months remaining)	$	58
2021		233
2022		233
2023		233
2024		233
Thereafter		1,557
Total	$	2,547



	December 31, 2019		March 31, 2019
	(In thousands)
Accrued expenses and other liabilities:
Accrued compensation	$	3,674	$	4,659
Purchased intellectual property		2,432		—
Accrued professional fees		7		60
Accrued commissions		355		304
Contingent consideration		—		492
Accrued retention payment		—		415
Miscellaneous accrued expenses		833		939
	$	7,301	$	6,869