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v3.20.4

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |
Net loss (including noncontrolling interests) | $ (6,282) | $ (5,802)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Stock-based compensation expense | 77 |
Bad debt expense |  | 105
Write-off of prepaids |  | 414
Depreciation and amortization | 767 | 855
Amortization of operating lease right-of-use assets | 405 | 404
Loss on disposal of property and equipment | 5 |
Changes in operating assets and liabilities: |  |
Accounts receivable and unbilled revenue, net | (394) | 397
Projects in process | 8 | (8)
Inventory | (91) | 124
Prepaid expenses and other current assets | (375) | (19)
Accounts payable and accrued expenses | 444 | 454
Deferred revenues | 64 | (429)
Operating lease obligations | (380) | (12)
Net cash used in operating activities | (5,752) | (3,517)
Cash flows from investing activities: |  |
Purchase of property and equipment | (60) | (89)
Sale of investment in joint venture | 2 |
Net cash used in investing activities | (58) | (89)
Cash flow from financing activities: |  |
Proceeds from issuance of common stock and warrants, net of offering costs |  | 36
Proceeds from issuance of preferred and common stock, net of offering costs | 13,530 |
Preferred dividends | (33) |
Proceeds from short-term borrowings | 966 |
Proceeds from short-term tax credits | 542 |
Payments on short-term borrowings | (516) |
Payments on short-term tax credits | (557) |
Principal payments on finance lease obligations | (321) | (535)
Net cash provided by (used in) financing activities | 13,611 | (499)
Effect of exchange rate changes on cash | 315 | (93)
Net change in cash | 8,116 | (4,198)
Cash at beginning of year | 2,357 | 6,555
Cash at end of year | 10,473 | 2,357
Supplemental disclosure of cash flow information: |  |
Cash paid for interest | 27 | 34
Cash paid for income taxes | 59 | 38
Supplemental disclosure of non-cash investing and financing activities: |  |
Short-term borrowings and accrued interest settled for Series C-2 Preferred Stock | 516 |
Right-of-use asset obtained in exchange for lease obligations | $ 864 |

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