XML 49 R7.htm IDEA: XBRL DOCUMENT v3.19.3
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Cash flows from operating activities:    
Net income (loss) $ (17,870) $ (26,009)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 7,433 6,020
Stock-based compensation 12,221 13,055
Other non-cash items (422) 152
Changes in operating assets and liabilities:    
Accounts receivable 8,735 (3,144)
Inventory (4,222) 1,550
Prepaid expenses and other assets 468 (868)
Accounts payable (3,172) 806
Accrued and other liabilities (9,183) (1,482)
Deferred revenue 107 4,219
Other 0 183
Net cash used in operating activities (5,905) (5,518)
Cash flows from investing activities:    
Proceeds from sales of marketable securities 22,189 23,194
Proceeds from maturities of marketable securities 33,449 41,732
Purchases of marketable securities (53,852) (67,754)
Purchase of investment 0 (1,000)
Purchases of property and equipment (3,939) (2,252)
Net cash used in investing activities (2,153) (6,080)
Cash flows from financing activities:    
Proceeds from issuance of common stock under employee equity incentive plans 3,505 1,269
Other (1) (76)
Net cash provided by financing activities 3,504 1,193
Net decrease in cash and cash equivalents (4,554) (10,405)
Cash and cash equivalents - beginning of period 40,621 46,567
Cash and cash equivalents - end of period 36,067 36,162
Non-cash investing and financing activities:    
Inventory transfers to property and equipment 1,070 925
Purchases of property and equipment included in accounts payable $ 459 $ 78