v3.20.2
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Operating activities    
Net loss $ (21,965) $ (16,778)
Adjustments to reconcile net loss to net cash used by operating activities:    
Depreciation and amortization 904 689
Stock-based compensation 3,068 3,860
Changes in operating assets and liabilities:    
Accounts receivable (1,289) (810)
Due to/from related parties (598) (1,156)
Inventory (2,688) (111)
Prepaid expenses and other current assets (1,118) (169)
Accounts payable (505) (423)
Accrued expenses (546) (14)
Accrued compensation (888) (67)
Other current liabilities (93) (513)
Other non-current assets 59 (378)
Net cash used by operating activities (25,659) (15,870)
Investing activities    
Short-term investments (29,942)  
Purchases of land, buildings, and equipment (517) (1,319)
Net cash used by investing activities (30,459) (1,319)
Financing activities    
Proceeds from Payroll Protection Act loan 1,518  
Repayments of financing lease obligations (130) (122)
Proceeds from the exercise of stock options   308
Costs incurred related to shares withheld for net share settlement   (559)
Proceeds from the sale and leaseback of land, buildings, and equipment   217
Net cash provided (used) by financing activities 1,388 (156)
Net decrease in cash, cash equivalents and restricted cash (54,730) (17,345)
Cash, cash equivalents and restricted cash - beginning of period 60,038 95,288
Cash, cash equivalents and restricted cash - end of period $ 5,308 $ 77,943

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