| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities | ||||||||
Net loss | ||||||||
-41,830 | -38,403 | -34,618 | -28,104 | -22,597 | -17,453 | 0 | 0 | 0 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Stock-based compensation | ||||||||
8,215 | 7,464 | 6,827 | 5,243 | 3,791 | 2,312 | 0 | 0 | 0 |
Depreciation and amortization | ||||||||
830 | 774 | 756 | 761 | 747 | 722 | 0 | 0 | 0 |
Bad debts expense | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Accretion on marketable securities | ||||||||
959 | 1,413 | 1,497 | 1,149 | 688 | 209 | 0 | 0 | 0 |
Amortization of debt issuance costs | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Amortization of debt discount | ||||||||
- | - | - | - | - | - | - | 0 | 0 |
Change in fair value of redeemable convertible preferred stock warrants | ||||||||
- | - | - | - | - | 826 | 0 | 0 | 0 |
Loss on sale and disposal of property and equipment | ||||||||
-74 | -171 | -109 | -102 | -109 | -52 | 0 | 0 | 0 |
Changes in operating assets and liabilities: | ||||||||
Accounts receivable | ||||||||
1,116 | 3,236 | 2,765 | 2,138 | 1,174 | 1,028 | 0 | 0 | 0 |
Inventory | ||||||||
2,196 | 2,105 | 1,876 | 1,531 | 703 | 759 | 0 | 0 | 0 |
Prepaid expenses and other assets | ||||||||
-233 | 515 | 853 | 887 | 638 | 752 | 0 | 0 | 0 |
Accounts payable | ||||||||
8 | 383 | 1,661 | 1,051 | 620 | 251 | 0 | 0 | 0 |
Accrued liabilities and other | ||||||||
2,386 | 4,994 | 2,941 | 1,471 | 2,341 | 1,260 | 0 | 0 | 0 |
Net cash used in operating activities | ||||||||
-33,904 | -31,627 | -28,911 | -24,320 | -17,186 | -14,519 | 0 | 0 | 0 |
Cash flows from investing activities | ||||||||
Maturities of marketable securities | ||||||||
163,200 | 159,800 | 117,100 | 83,600 | 17,600 | 0 | 0 | 0 | 0 |
Purchases of marketable securities | ||||||||
137,900 | 143,864 | 204,428 | 179,399 | 119,624 | 96,883 | 0 | 0 | 0 |
Purchases of property and equipment | ||||||||
2,917 | 2,445 | 1,804 | 1,120 | 1,136 | 942 | 0 | 0 | 0 |
Net cash provided by (used in) investing activities | ||||||||
22,383 | 13,491 | -89,132 | -96,919 | -103,160 | -97,825 | 0 | 0 | 0 |
Cash flows from financing activities | ||||||||
Proceeds from follow-on public offering, net of underwriting discounts, commissions and offering costs | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Proceeds from the exercise of stock options | ||||||||
1,539 | 1,490 | 1,877 | 1,973 | 1,719 | 1,614 | 0 | 0 | 0 |
Net cash provided by financing activities | ||||||||
66,515 | 3,488 | 116,759 | 116,605 | 115,255 | 115,150 | 0 | 0 | 0 |
Effect of exchange rate changes on cash and cash equivalents | ||||||||
13 | -37 | -106 | -103 | -140 | -94 | 0 | 0 | 0 |
Net decrease in cash and cash equivalents | ||||||||
55,007 | -14,685 | -1,390 | -4,737 | -5,231 | 2,712 | 0 | 0 | 0 |
Cash and cash equivalents at | ||||||||
Supplemental disclosure of non-cash information | ||||||||
Vesting of early exercised stock options | ||||||||
158 | 197 | 236 | 233 | 187 | 139 | 0 | 0 | 0 |
Purchases of property and equipment included in accounts payable and accrued liabilities | ||||||||
287 | 375 | 78 | 42 | 222 | 82 | 0 | 0 | 0 |
Public offering costs included in accounts payable | ||||||||
0 | - | - | - | 0 | - | - | - | 0 |