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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Cash flows from operating activities: |  |
Net (loss)/income | $ (47,432) | $ 1,097
Adjustments to reconcile net (loss) / income to net cash (used for) provided by operating activities: |  |
Depreciation and amortization | 2,438 | 2,797
Change in Fair value of warrant | 5,278 | 309
Share-based compensation expenses | 28,541 | 0
Asset retirement obligation accretion | 102 | 90
Amortization of intangible | 38 | 37
Amortization of debt issuance costs and discounts | 1,297 | 1,391
Noncash interest expense | 0 | 16
Bad debt provision | 20 |
Bad debt (recovery) | 0 | (38)
Changes in operating assets and liabilities: |  |
Accounts receivable, net | (1,291) | 3,751
Inventories, net | (469) | (1,480)
Prepaid expenses and other assets | (889) | 78
Accounts payable and accrued expenses | 2,754 | 4,219
Deferred revenue | (566) | 966
Net cash (used for) provided by operating activities | (10,179) | 13,233
Cash flows from investing activities: |  |
Capital expenditures | (1,334) | (1,980)
Net cash (used for) investing activities | (1,334) | (1,980)
Cash flows from financing activities: |  |
Proceeds from initial offering of common stock | 68,714 | 0
Proceeds from warrant exercise | 0 | 24
Proceeds from issuance of debt | 0 | 5,000
Payments for deferred offering costs | (4,695) | (43)
Payments for taxes on share-based compensation | (5,903) | 0
Net cash provided by financing activities | 58,116 | 4,981
Net increase in cash and cash equivalents | 46,603 | 16,234
Cash and cash equivalents: |  |
Beginning of period | 17,379 | 9,209
End of period | 63,982 | 25,443
Supplemental disclosures of cash flow information: |  |
Cash payments for interest | 4,471 | 4,346
Net increase (decrease) in capital expenditures included in accounts payable and accrued expenses | (145) | 13
Net (decrease) in deferred offering costs included in accounts payable and accrued expenses | (515) | 0
Accrued withholding tax for share-based compensation | 1,701 | 0
Accrued Series A-2 and A-3 preferred dividends | 0 | 1,854
Reclass of deferred offering costs charged to additional paid in capital | 5,230 | 0
Noncash component of warrants exercised | $ 12,951 | $ 0

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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- References No definition available. + Details
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