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Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income (loss) $ (20,145) $ (5,275)
Adjustments to reconcile net income (loss) to net cash from (used in) operating activities:    
Depreciation and amortization of property and equipment 6,753 8,604
Loss (gain) on disposal of property and equipment   110
Loss (gain) on build-to-suit accounting derecognition (4,936)  
Loss on impairment 7,448  
Changes in reserves and allowances (425) (671)
Share-based compensation 2,240 2,835
Non-cash interest expense 182 125
Changes in operating assets and liabilities:    
Accounts receivable 39 153
Inventories 767 1,216
Prepaid expenses and other current assets (2,992) 3,341
Accounts payable 2,533 279
Accrued expenses and other current liabilities (5,964) (1,319)
Deferred revenue 1,694 (1,727)
Other noncurrent assets and liabilities 202 (2,533)
Net cash from (used in) operating activities (12,604) 5,138
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (1,611) (1,734)
Proceeds from sale of property and equipment 59 67
Net cash from (used in) investing activities (1,552) (1,667)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Payments of debt issuance costs   (7)
Proceeds from exercise of stock options 486 102
Principal payments on capital lease obligations, pre adoption (77) (66)
Net cash from (used in) financing activities 409 29
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH (13,747) 3,500
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - Beginning of period 46,443 97,307
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - End of period 32,696 100,807
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:    
Cash paid for interest 2,088 2,174
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:    
Acquisition (disposal) of property and equipment financed under capital lease (22)  
Non-cash additions to property and equipment 81 138
Purchases of property and equipment in Accounts payable and Accrued expenses and other current liabilities $ 354 $ 250