NOTE 4—BALANCE SHEET DETAIL


	March 31,
	2019		2018
	(In thousands)
Inventories:
Work-in-progress	$	1,983	$	2,226
Finished goods		3,690		3,299
Inventory at distributors		12		22
	$	5,685	$	5,547


	March 31,
	2019		2018
	(In thousands)
Accounts receivable, net:
Accounts receivable	$	7,441	$	5,342
Less: Allowances for doubtful accounts and other		(102)		(63)
	$	7,339	$	5,279


	March 31,
	2019		2018
	(In thousands)
Prepaid expenses and other current assets:
Prepaid tooling and masks	$	535	$	163
Prepaid income taxes		39		—
Escrow deposit		1,000		750
Other receivables		321		370
Other prepaid expenses and other current assets		605		797
	$	2,500	$	2,080


	March 31,
	2019		2018
	(In thousands)
Property and equipment, net:
Computer and other equipment	$	19,086	$	17,845
Software		4,058		4,072
Land		3,900		3,900
Building and building improvements		3,718		2,310
Furniture and fixtures		102		82
Leasehold improvements		848		766
Construction in progress		—		965
		31,712		29,940
Less: Accumulated depreciation		(22,711)		(21,768)
	$	9,001	$	8,172

Depreciation expense was $1.2 million, $934,000 and $1.2 million for the years ended March 31, 2019, 2018 and 2017, respectively. The construction in progress related to a facility expansion at our Sunnyvale headquarters that was placed in service in the first quarter of fiscal 2019.


	March 31,
	2019		2018
	(In thousands)
Other assets:
Escrow deposit	$	—	$	1,000
Non-current deferred income taxes		35		75
Deposits		125		132
	$	160	$	1,207

The following table summarizes the components of intangible assets and related accumulated amortization balances at March 31, 2019 and 2018, respectively (in thousands):


	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


	As of March 31, 2018
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Intangible assets:
Product designs	$	590	$	(590)	$	—
Patents		4,220		(1,231)		2,989
Software		80		(80)		—
Total	$	4,890	$	(1,901)	$	2,989

Amortization of intangible assets of $267,000, $313,000 and $349,000 was included in cost of revenues for the years ended March 31, 2019, 2018 and 2017, respectively.

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


Twelve month period ending March 31,
2020	$	233
2021		233
2022		233
2023		233
2024		233
Thereafter		1,557
Total	$	2,722


	March 31,
	2019		2018
	(In thousands)
Accrued expenses and other liabilities:
Accrued compensation	$	4,659	$	2,786
Accrued professional fees		60		31
Accrued commissions		304		299
Contingent consideration		492		1,102
Accrued retention payment		415		291
Miscellaneous accrued expenses		939		1,054
	$	6,869	$	5,563


	March 31,
	2019		2018
	(In thousands)
Other accrued expenses:
Contingent consideration	$	3,713	$	4,411
Other long-term accrued liabilities		—		291
	$	3,713	$	4,702