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v3.20.2

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Cash flows from operating activities |  |
Net loss | $ (43,701) | $ (28,468)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation | 356 | 355
Amortization of premiums (accretion of discounts) on investments | 0 | (131)
Non-cash lease expense | 602 | 723
(Gain) Loss on disposal of property and equipment | (35) | 76
Stock‑based compensation expense | 2,890 | 2,431
Non‑cash interest expense | 173 | 267
Warrant liabilities revaluation | 8,385 | 0
Changes in operating assets and liabilities: |  |
Accounts receivable | 5,000 | 0
Prepaid expenses, deposits and other assets | 451 | 2,189
Accounts payable | 735 | 1,363
Deferred revenue | 2,000 | (11)
Accrued expenses and other liabilities | (362) | (6,231)
Net cash used in operating activities | (23,506) | (27,437)
Cash flows from investing activities |  |
Receipts from the maturity of short-term investments | 0 | 4,850
Purchases of short-term investments | 0 | (18,188)
Sale of short term investments | 0 | 1,992
Purchases of property and equipment | (334) | (5)
Proceeds from the sale of property and equipment | 45 | 77
Net cash used in investing activities | (289) | (11,274)
Cash flows from financing activities |  |
Repayments of principal on outstanding debt | (4,200) | 0
Net proceeds from issuance of common stock | 0 | 30,942
Issuance costs paid for December 2019 financing | (4,381) | 0
Other financing fees | (147) | 0
Proceeds from exercise of stock options | 101 | 145
Proceeds from issuance of common stock under Employee Stock Purchase Plan | 114 | 20
Net cash (used in) provided by financing activities | (6,327) | 31,479
Effect of exchange rate changes on cash | (42) | 29
Net change in cash, cash equivalents, and restricted cash | (30,164) | (7,203)
Cash, cash equivalents, and restricted cash at beginning of period | 91,551 | 37,682
Cash, cash equivalents, and restricted cash at end of period | 61,387 | 30,479
Supplement cash flow information |  |
Cash paid for interest | 387 | 634
Noncash investing and financing activities |  |
Cashless warrant exercise | 17,089 | 0
Reclassification of warrant liability to equity upon exercise of warrants | 77 | 0
Purchase of property and equipment not yet paid | 111 | 0
Equity offering costs in accrued liabilities | 29 | 14
Unrealized gain on marketable securities | 0 | 3
At-The-Market Offering |  |
Cash flows from financing activities |  |
Net proceeds from issuance of common stock | 2,137 | 372
Note Warrant |  |
Cash flows from financing activities |  |
Net proceeds from issuance of common stock | $ 49 |
Proceeds from exercise of pre-funded and common warrants |  | $ 0

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