v3.21.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Cash flows from operating activities:    
Net loss $ (6,660) $ (8,192)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 772 307
Amortization of right-of-use assets 500 470
Amortization of intangible assets 47 36
Amortization of deferred financing fees 112 0
Provision for bad debt (26) 22
Provision for inventory write-down 783 924
Changes in fair value of derivatives 22 0
Changes in investment gains and losses 15 (49)
Share-based compensation 2,694 556
Change in operating assets and liabilities:    
Accounts receivable (2,181) 3,902
Inventory (1,642) (1,626)
Prepaid expenses and other (313) (2,024)
Accounts payable and accrued expenses (5,061) (1,903)
Operating lease obligations 119 (472)
Contract and other liabilities (1) (3)
Net cash used in operating activities (10,820) (8,052)
Cash flows from investing activities:    
Purchase of property and equipment (3,095) (5,021)
Purchase of investments (15,279) (11,760)
Proceeds from sale of investments 19,400 25,450
Cash payments for intangible assets (156) (119)
Net cash provided by investing activities 870 8,550
Cash flows from financing activities:    
Payments of employee tax withholding in exchange of common stock awards 0 (639)
Cash paid for debt portion of finance leases (4) (5)
Proceeds from exercise of stock options 521 316
Net cash provided by (used in) financing activities 517 (328)
Net (decrease) increase in cash, cash equivalents, and restricted cash (9,433) 170
Cash, cash equivalents, and restricted cash, beginning of period 55,609 41,724
Cash, cash equivalents and restricted cash, end of period 46,176 41,894
Supplemental disclosures of cash flow activity:    
Cash paid for interest 312 11
Supplemental disclosure of non-cash investing and financing activities:    
Acquisition of fixed assets in accounts payable and accrued expenses 4,836 3,674
Obtaining a right-of-use asset in exchange for a lease liability 321 120
Acquisition of intangible assets in accounts payable and accrued expenses $ 166 $ 0

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