v3.21.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Operating activities    
Net loss $ (10,028) $ (11,063)
Adjustments to reconcile net loss to net cash used by operating activities:    
Depreciation and amortization 585 452
Stock-based compensation (1,450) 1,271
Changes in operating assets and liabilities:    
Accounts receivable 3,533 281
Due to/from related parties (652) (430)
Inventory (3,149) (604)
Prepaid expenses and other current assets 583 (786)
Accounts payable 30 8
Accrued expenses 167 (451)
Accrued compensation (186) (818)
Other non-current liabilities 1,100 (9)
Other 50 (89)
Net cash used by operating activities (9,417) (12,238)
Investing activities    
Sales and (purchases) of short-term investments, net 8,653 (38,620)
Purchases of land, buildings, and equipment (269) (317)
Net cash provided by (used by) investing activities 8,384 (38,937)
Financing activities    
Repayments of financing lease obligations (88) (45)
Proceeds from the exercise of stock options 208  
Net cash provided by (used by) financing activities 120 (45)
Net decrease in cash, cash equivalents, and restricted cash (913) (51,220)
Cash, cash equivalents, and restricted cash - beginning of period 18,289 60,038
Cash, cash equivalents, and restricted cash – end of period $ 17,376 $ 8,818

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