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v3.20.1

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Operating activities |  |
Net loss | $ (11,716) | $ (1,917)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 1,972 | 945
Gain on disposal of property and equipment | 0 | (16)
Stock-based compensation | 2,905 | 1,759
Amortization of debt issuance costs | 0 | 8
Interest on end-of-term debt obligation | 54 | 64
Write-down of excess supplies | 1,088 | 0
Noncash lease expense | 232 | 212
Revaluation of acquisition-related contingent consideration | (484) | 0
Changes in operating assets and liabilities: |  |
Accounts receivable | 238 | (3,447)
Supplies | (376) | (366)
Prepaid expenses and other current assets | (818) | (11)
Operating lease liability | (331) | (292)
Other assets | 135 | 37
Accounts payable | 5,450 | 1,726
Accrued liabilities | (3,650) | 287
Net cash used in operating activities | (5,301) | (1,011)
Investing activities |  |
Purchases of property and equipment | (665) | (765)
Proceeds from disposal of property and equipment | 0 | 16
Net cash used in investing activities | (665) | (749)
Financing activities |  |
Payment of long-term debt | 0 | (12,500)
Payment of finance lease liability | 0 | (75)
Payment of taxes on vested restricted stock units | (2,304) | (556)
Proceeds from the exercise of common stock options and employee stock purchases | 2,085 | 4,737
Net cash used in financing activities | (219) | (8,394)
Net decrease in cash, cash equivalents and restricted cash | (6,185) | (10,154)
Cash, cash equivalents and restricted cash at beginning of period | 159,920 | 78,598
Cash, cash equivalents and restricted cash at end of period | 153,735 | 68,444
Supplementary cash flow information: |  |
Purchases of property and equipment included in accounts payable and accrued liability | 113 | 95
Interest paid on debt | 1 | 228
Total cash, cash equivalents and restricted cash | $ 159,920 | $ 68,444

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