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v3.20.2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019
Operating activities |  |
Net loss | $ (22,741) | $ (4,411)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 3,929 | 1,869
Gain on disposal of property and equipment | 0 | (17)
Stock-based compensation | 6,265 | 4,325
Amortization of debt issuance costs | 0 | 83
Interest on end-of-term debt obligation | 107 | 120
Write-down of excess supplies | 1,088 | 0
Noncash lease expense | 469 | 431
Revaluation of acquisition-related contingent consideration | (140) | 0
Changes in operating assets and liabilities: |  |
Accounts receivable | 4,023 | (6,458)
Supplies | (1,323) | (1,702)
Prepaid expenses and other current assets | (664) | (192)
Operating lease liability | (682) | (604)
Other assets | 166 | 25
Accounts payable | 122 | 1,746
Accrued liabilities | (4,343) | 1,319
Net cash used in operating activities | (13,724) | (3,466)
Investing activities |  |
Purchases of property and equipment | (1,314) | (1,424)
Proceeds from disposal of property and equipment | 0 | 17
Net cash used in investing activities | (1,314) | (1,407)
Financing activities |  |
Proceeds from the issuance of common stock in a public offering, net of issuance costs | 0 | 137,848
Payment of long-term debt | 0 | (24,900)
Payment of finance lease liability | 0 | (152)
Payment of taxes on vested restricted stock units | (2,678) | (676)
Proceeds from the exercise of common stock options and employee stock purchases | 5,849 | 7,405
Net cash provided by financing activities | 3,171 | 119,525
Net (decrease) increase in cash, cash equivalents and restricted cash | (11,867) | 114,652
Cash, cash equivalents and restricted cash at beginning of period | 159,920 | 78,598
Cash, cash equivalents and restricted cash at end of period | 148,053 | 193,250
Supplementary cash flow information: |  |
Purchases of property and equipment included in accounts payable and accrued liability | 0 | 72
Interest paid on debt | 3 | 319
Cash and cash equivalents | 147,450 |
Restricted cash | 603 |
Cash, cash equivalents and restricted cash at end of period | $ 148,053 | $ 193,250

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