Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 25,704	$ 34,276
Short-term investments	204,164	186,894
Accounts receivable, net	42,547	40,127
Other receivables	6,312	4,148
Inventories	4,576	4,350
Prepaid expenses and other current assets	5,149	4,691
Total current assets	288,452	274,486
Property and equipment, net	8,661	7,468
Intangible assets, net	5,461	9,070
Goodwill	49,246	49,246
Deferred commissions	10,477	10,303
Other long-term assets	8,158	1,525
Total assets	370,455	352,098
Current liabilities
Accounts payable	6,036	4,217
Accrued payroll and other current liabilities	14,757	12,885
Deferred revenue, current	50,033	44,053
Total current liabilities	70,826	61,155
Deferred revenue, long-term	11,442	14,579
Other long-term liabilities	7,184	2,957
Total liabilities	206,630	189,231
Commitments and contingencies (Note 9)
Stockholders' equity
Preferred stock, $0.0003 par value - 5,000,000 shares authorized as of December 31, 2019 and December 31, 2018; zero shares issued and outstanding	0	0
Common stock, $0.0003 par value - 100,000,000 shares authorized as of December 31, 2019 and December 31, 2018; 31,660,709 and 30,708,138 shares issued and outstanding as of December 31, 2019 and December 31, 2018, respectively	9	9
Additional paid-in capital	313,963	295,647
Accumulated other comprehensive income (loss)	179	(443)
Accumulated deficit	(150,326)	(132,346)
Total stockholders’ equity	163,825	162,867
Total liabilities and stockholders’ equity	370,455	352,098
Convertible Debt, Noncurrent	$ 117,178	$ 110,540