Balance Sheet Details

6 Months Ended

Jun. 30, 2020

Balance Sheet Details

Balance Sheet Details

Note 3.  Balance Sheet Details

Short-term Investments

Short-term investments consisted of the following (in thousands):

	At June 30, 2020
	Maturity	Amortized cost		Unrealized		Unrealized		Estimated
	(in years)	or cost		gains		losses		fair value
U.S. government agency bonds	less than 4		14,500		2		(4)		14,498
Bank certificates of deposit	less than 1		16,900		45		(1)		16,944
Commercial paper	less than 1		8,488		11		—		8,499
Corporate notes	less than 3		67,347		597		(10)		67,934
Asset-backed securities	less than 5		19,766		325		—		20,091
Total		$	127,001	$	980	$	(15)	$	127,966
	At December 31, 2019
	Maturity	Amortized cost		Unrealized		Unrealized		Estimated
	(in years)	or cost		gains		losses		fair value
Bank certificates of deposit	less than 1		12,999		7		—		13,006
Commercial paper	less than 1		7,475		8		—		7,483
Corporate notes	less than 3		65,354		295		(10)		65,639
Asset-backed securities	less than 3		25,333		99		(7)		25,425
Total		$	111,161	$	409	$	(17)	$	111,553

Accounts Receivable, Net

Accounts receivable consisted of the following (in thousands):

	June 30,		December 31,
	2020		2019
Accounts receivable	$	28,501	$	39,657
Allowance for credit losses		(1,771)		(1,240)
	$	26,730	$	38,417

Inventory, Net

Inventory, net consisted of the following (in thousands):

	June 30,		December 31,
	2020		2019
Finished goods	$	8,328	$	32,108
Work in process		3,471		3,884
Raw material		9,289		6,586
	$	21,088	$	42,578

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	June 30,		December 31,
	2020		2019
Accrued bonuses	$	7,320	$	13,525
Accrued vacation benefits		3,369		2,784
Accrued legal expenses		5,547		3,957
Accrued Employee Stock Purchase Plan liability		3,084		-
Accrued payroll taxes		7,765		1,133
Other accrued liabilities		18,513		30,520
	$	45,598	$	51,919