v3.20.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Operating activities    
Net loss $ (11,063) $ (7,375)
Adjustments to reconcile net loss to net cash used by operating activities:    
Depreciation and amortization 452 342
Stock-based compensation 1,271 1,556
Changes in operating assets and liabilities:    
Accounts receivable 281 (124)
Due to/from related parties (430) (1,114)
Inventory (604) (379)
Prepaid expenses and other current assets (786) (629)
Accounts payable 8 (94)
Accrued expenses (451) (397)
Accrued compensation (818) (418)
Other current liabilities (156) (428)
Other non-current assets (120) (216)
Net cash used by operating activities (12,416) (9,276)
Investing activities    
Short-term investments (38,620)  
Purchases of land, buildings, and equipment (139) (346)
Net cash used by investing activities (38,759) (346)
Financing activities    
Repayments of financing lease obligations (45) (59)
Proceeds from the exercise of stock options   125
Net cash (used) provided by financing activities (45) 66
Net decrease in cash, cash equivalents and restricted cash (51,220) (9,556)
Cash, cash equivalents and restricted cash - beginning of period 60,038 95,288
Cash, cash equivalents and restricted cash - end of period $ 8,818 $ 85,732

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