Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 159,820	$ 171,082
Short-term investments	0	12,592
Accounts receivable, net of allowance for doubtful accounts of $589 and $75 at March 31, 2020 and December 31, 2019, respectively	20,770	7,879
Inventory, net	19,230	15,659
Prepaid expenses and other current assets	4,245	4,468
Total current assets	204,065	211,680
Property and equipment, net	5,406	3,047
Intangible asset, net	282	311
Other assets	7,626	4,784
Total assets	217,379	219,822
Current liabilities
Accounts payable	7,440	5,882
Accrued liabilities	3,110	2,174
Accrued compensation and benefits	3,503	3,375
Operating lease liability, current portion	794	602
Debt, current portion	5,000	0
Total current liabilities	19,847	12,033
Operating lease liability, net of current portion	9,485	4,450
Debt, net of unamortized debt issuance costs, net of current portion	15,571	20,336
Total liabilities	44,903	36,819
Stockholders’ equity
Preferred stock, par value $0.0001 per share; 10,000,000 shares authorized, no shares issued and outstanding at March 31, 2020 and December 31, 2019	0	0
Common stock, par value $0.0001, 50,000,000 shares authorized at March 31, 2020 and December 31, 2019; 34,510,662 and 34,110,995 shares issued and outstanding at March 31, 2020 and December 31, 2019, respectively	3	3
Additional paid-in capital	367,278	363,012
Accumulated deficit	(194,200)	(179,584)
Accumulated other comprehensive loss	(605)	(428)
Total stockholders’ equity	172,476	183,003
Total liabilities and stockholders’ equity	$ 217,379	$ 219,822