4. BALANCE SHEET DETAIL (Tables)

3 Months Ended

Jun. 30, 2020

BALANCE SHEET DETAIL

Schedule of inventories

	June 30, 2020		March 31, 2020
	(In thousands)
Inventories:
Work-in-progress	$	1,992	$	1,650
Finished goods		2,684		2,612
Inventory at distributors		27		20
	$	4,703	$	4,282

Schedule of accounts receivable, net

	June 30, 2020		March 31, 2020
	(In thousands)
Accounts receivable, net:
Accounts receivable	$	3,941	$	6,415
Less: Allowances for doubtful accounts and other		(103)		(85)
	$	3,838	$	6,330

Schedule of prepaid expenses and other current assets

	June 30, 2020		March 31, 2020
	(In thousands)
Prepaid expenses and other current assets:
Prepaid tooling and masks	$	399	$	707
Prepaid income taxes		76		79
Other receivables		213		211
Other prepaid expenses and other current assets		1,023		937
	$	1,711	$	1,934

Schedule of property and equipment, net

	June 30, 2020		March 31, 2020
	(In thousands)
Property and equipment, net:
Computer and other equipment	$	18,237	$	18,191
Software		4,086		4,086
Land		3,900		3,900
Building and building improvements		3,735		3,735
Furniture and fixtures		102		102
Leasehold improvements		875		874
		30,935		30,888
Less: Accumulated depreciation		(23,065)		(22,769)
	$	7,870	$	8,119

Schedule of other assets

	June 30, 2020		March 31, 2020
	(In thousands)
Other assets:
Deposits		130		128
	$	130	$	128

Schedule of intangible assets

The following tables summarize the components of intangible assets and related accumulated amortization balances at June 30, 2020 and March 31, 2020 (in thousands):

	As of June 30, 2020
	Gross Carrying Amount		Accumulated amortization		Net Carrying Amount
Intangible assets:
Product designs	$	590	$	(590)	$	—
Patents		4,220		(1,789)		2,431
Software		80		(80)		—
Total	$	4,890	$	(2,459)	$	2,431

	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

Estimated future amortization expense of intangible assets

As of June 30, 2020, the estimated future amortization expense of intangible assets in the table above is as follows (in thousands):

Fiscal year ending March 31,
2021 (Remaining nine months)	$	175
2022		233
2023		233
2024		233
2025		233
Thereafter		1,324
Total	$	2,431

Schedule of accrued expenses and other liabilities

	June 30, 2020		March 31, 2020
	(In thousands)
Accrued expenses and other liabilities:
Accrued compensation	$	3,292	$	3,673
Purchased intellectual property		811		1,621
Accrued commissions		238		270
Income taxes payable		871		143
Miscellaneous accrued expenses		845		871
	$	6,057	$	6,578