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v3.19.2

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018
Cash flows from operating activities |  |
Net loss | $ (9,019) | $ (1,207)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 316 | 371
Provision for inventory obsolescence | 36 | 0
Gain on disposal of property and equipment, net | 0 | (1)
Stock based compensation | 1,715 | 749
Change in fair value of derivative liabilities | 0 | (20)
Non-cash lease expense | 53 | 0
Realized gain on short term investments | (164) | 0
Provision for allowance for doubtful accounts | (157) | 82
Changes in current assets and liabilities: |  |
Trade receivables | (1,046) | (817)
Prepaid expenses | (841) | (72)
Inventories | (1,216) | (1,007)
Deposits and other assets | (321) | (23)
Accounts payable | 218 | 1,162
Accrued severance and related | (319) | 0
Accrued and other liabilities | 604 | (898)
Net cash used in operating activities | (10,141) | (1,681)
Cash flows from investing activities |  |
Purchases of property and equipment | (922) | (332)
Purchases of marketable securities | (18,884) | 0
Proceeds from maturities of marketable securities | 80,726 | 0
Net cash provided by (used in) investing activities | 60,920 | (332)
Cash flows from financing activities |  |
Proceeds from stock options/warrants exercised | 115 | 0
Repayment of mortgage note payable | 0 | (120)
Net cash provided by (used in) financing activities | 115 | (120)
Net change in cash, cash equivalents and restricted cash | 50,894 | (2,133)
Cash, cash equivalents and restricted cash, beginning of period | 16,466 | 10,668
Cash, cash equivalents and restricted cash, end of period | 67,360 | 8,535
Cash paid for: |  |
Interest | 0 | 72
Non cash investing and financing activities: |  |
Cashless exercise of stock options/warrants | 662 | 0
Capitalization of lease | $ 394 | $ 0

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