| 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 | ||||||||
-38,198 | -52,415 | -59,743 | -60,689 | -56,380 | -37,630 | 0 | 0 | 0 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Depreciation and amortization expense | ||||||||
722 | 712 | 722 | 736 | 634 | 517 | 0 | 0 | 0 |
Stock-based compensation expense | ||||||||
4,008 | 2,977 | 2,249 | 1,519 | 1,011 | 911 | 0 | 0 | 0 |
Change in fair value of redeemable convertible preferred stock warrant liability | ||||||||
5,318 | 21,030 | 28,029 | 31,258 | 27,834 | 11,906 | 0 | 0 | 0 |
Amortization of premium on investments | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Amortization of debt discount and debt issuance costs | ||||||||
47 | 46 | 45 | 44 | 56 | 68 | 0 | 0 | 0 |
Amortization of right-of-use asset | ||||||||
566 | 582 | 0 | 0 | 0 | - | - | - | - |
Non-cash interest expense | ||||||||
284 | 672 | 997 | 1,328 | 1,640 | 1,555 | 0 | 0 | 0 |
Change in provision for doubtful accounts receivable | ||||||||
17 | 23 | -215 | -62 | -404 | -123 | 0 | 0 | 0 |
Provision for excess and obsolete inventories | ||||||||
183 | 118 | 101 | 66 | 50 | 23 | 0 | 0 | 0 |
Changes in assets and liabilities | ||||||||
Accounts receivable | ||||||||
2,458 | 2,241 | 2,506 | 2,543 | 2,301 | 446 | 0 | 0 | 0 |
Inventories | ||||||||
4,228 | 4,696 | 4,249 | 4,773 | 4,471 | 2,565 | 0 | 0 | 0 |
Prepaid expenses and other current assets | ||||||||
504 | 1,471 | 2,787 | 2,491 | 725 | 1,128 | 0 | 0 | 0 |
Other assets | ||||||||
-1,258 | -552 | -760 | -746 | 730 | 62 | 0 | 0 | 0 |
Accounts payable | ||||||||
-398 | 615 | 968 | -378 | 2,222 | -309 | 0 | 0 | 0 |
Accrued liabilities | ||||||||
731 | 4,964 | 5,899 | 5,230 | 6,241 | 5,023 | 0 | 0 | 0 |
Other liabilities | ||||||||
97 | -769 | -608 | -210 | -663 | 406 | 0 | 0 | 0 |
Net cash used in operating activities | ||||||||
-32,785 | -29,610 | -29,739 | -29,760 | -25,665 | -21,695 | 0 | 0 | 0 |
Cash flows from investing activities | ||||||||
Purchases of property and equipment | ||||||||
552 | 535 | 445 | 1,478 | 1,938 | 2,276 | 0 | 0 | 0 |
Purchases of investments | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Proceeds from maturity of investments | ||||||||
0 | - | - | - | 0 | - | - | - | - |
Net cash used in investing activities | ||||||||
-69,947 | -69,956 | -439 | -1,472 | -1,932 | -2,270 | 0 | 0 | 0 |
Cash flows from financing activities | ||||||||
Payment of deferred offering costs | ||||||||
0 | - | - | - | 0 | - | - | - | 0 |
Proceeds from issuance of common stock | ||||||||
2,489 | 2,590 | 813 | 962 | 747 | 656 | 0 | 0 | 0 |
Proceeds from exercise of redeemable convertible preferred stock warrants | ||||||||
- | - | - | - | - | - | - | - | 0 |
Net cash provided by (used in) financing activities | ||||||||
114,775 | 113,757 | 111,747 | 126,458 | 14,396 | 15,424 | 0 | 0 | 0 |
Net change in cash, cash equivalents and restricted cash | ||||||||
12,043 | 14,191 | 81,569 | 95,226 | -13,201 | -8,541 | 0 | 0 | 0 |
Supplemental disclosure of cash flow information | ||||||||
Cash paid for interest | ||||||||
4,472 | 4,234 | 3,990 | 3,548 | 3,028 | 2,738 | 0 | 0 | 0 |
Non-cash investing and financing activities: | ||||||||
Accounts payable and accrued liabilities for purchases of property and equipment | ||||||||
32 | 32 | -11 | -683 | -62 | 6 | 0 | 0 | 0 |
Offering costs in accounts payable and accrued liabilities | ||||||||
0 | - | - | 0 | 0 | - | - | 0 | 0 |
Right-of-use asset obtained in exchange for lease obligation | ||||||||
0 | 3,982 | 0 | 0 | 0 | - | - | - | - |
Redeemable Convertible Preferred Stock | ||||||||
Proceeds from exercise of redeemable convertible preferred stock warrants | ||||||||
1,754 | 1,784 | 0 | 0 | 0 | - | - | - | - |