NOTE 4—BALANCE SHEET DETAIL


	March 31,
	2020		2019
	(In thousands)
Inventories:
Work-in-progress	$	1,650	$	1,983
Finished goods		2,612		3,690
Inventory at distributors		20		12
	$	4,282	$	5,685


	March 31,
	2020		2019
	(In thousands)
Accounts receivable, net:
Accounts receivable	$	6,415	$	7,441
Less: Allowances for doubtful accounts and other		(85)		(102)
	$	6,330	$	7,339


	March 31,
	2020		2019
	(In thousands)
Prepaid expenses and other current assets:
Prepaid tooling and masks	$	707	$	535
Prepaid income taxes		79		39
Escrow deposit		—		1,000
Other receivables		211		321
Other prepaid expenses and other current assets		937		605
	$	1,934	$	2,500


	March 31,
	2020		2019
	(In thousands)
Property and equipment, net:
Computer and other equipment	$	18,191	$	19,086
Software		4,086		4,058
Land		3,900		3,900
Building and building improvements		3,735		3,718
Furniture and fixtures		102		102
Leasehold improvements		874		848
		30,888		31,712
Less: Accumulated depreciation		(22,769)		(22,711)
	$	8,119	$	9,001

Depreciation expense was $1.2 million, $1.2 million and $934,000 for the years ended March 31, 2020, 2019 and 2018, respectively.


	March 31,
	2020		2019
	(In thousands)
Other assets:
Non-current deferred income taxes	$	—	$	35
Deposits		128		125
	$	128	$	160

The following table summarizes the components of intangible assets and related accumulated amortization balances at March 31, 2020 and 2019, respectively (in thousands):


	As of March 31, 2020
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets:
Product designs	$	590	$	(590)	$	—
Patents		4,220		(1,731)		2,489
Software		80		(80)		—
Total	$	4,890	$	(2,401)	$	2,489


	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 of $233,000, $267,000 and $313,000 was included in cost of revenues for the years ended March 31, 2020, 2019 and 2018, respectively.

As of March 31, 2020, the estimated future amortization expense of intangible assets in the table above is as follows (in thousands):


Fiscal year ending March 31,
2021	$	233
2022		233
2023		233
2024		233
2025		233
Thereafter		1,324
Total	$	2,489


	March 31,
	2020		2019
	(In thousands)
Accrued expenses and other liabilities:
Accrued compensation	$	3,673	$	4,659
Purchased intellectual property		1,621		—
Accrued professional fees		—		60
Accrued commissions		270		304
Contingent consideration		—		492
Accrued retention payment		—		415
Miscellaneous accrued expenses		1,014		939
	$	6,578	$	6,869