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v3.3.1.900

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Cash flows from operating activities: |  |  |
Net loss (including noncontrolling interests) | $ (7,835) | $ (14,234) | $ (13,080)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Stock-based compensation | $ 1,075 | 1,729 | $ 2,656
Bad debt expense |  | 167 |
Depreciation and amortization | $ 187 | 202 | $ 144
Loss on disposal of property and equipment | 28 | 16 | 8
Changes in operating assets and liabilities: |  |  |
Accounts receivable | (239) | (304) | 1,155
Projects in process | 38 | 530 | (736)
Prepaid expenses and other current assets | (263) | (60) | 95
Accounts payable and accrued expenses | 871 | 363 | 19
Deferred revenues | (1,925) | (233) | 938
Net cash used in operating activities | (8,063) | (11,824) | (8,801)
Cash flows from investing activities: |  |  |
Purchase of property and equipment | $ (198) | (115) | $ (155)
Proceeds from sale of property and equipment |  | 7 |
Net cash used in investing activities | $ (198) | $ (108) | $ (155)
Cash flow from financing activities: |  |  |
Proceeds from exercise of stock options |  |  | 1,060
Proceeds from exercise of warrants |  | $ 36 | 714
Proceeds from issuance of common stock, net of offering costs | $ 5,422 | $ 9,253 | $ 6,892
Contributions from noncontrolling interests | 3 |  |
Principal payments on capital lease obligations | (57) | $ (34) |
Net cash provided by financing activities | 5,368 | 9,255 | $ 8,666
Effect of exchange rates on cash | (154) | (9) | 8
Net decrease in cash | (3,047) | (2,686) | (282)
Cash at beginning of year | 6,129 | 8,815 | 9,097
Cash at end of year | 3,082 | 6,129 | $ 8,815
Supplemental disclosure of cash flow information: |  |  |
Cash paid for interest | 18 | 14 |
Cash paid for income taxes | $ 93 | 5 | $ 109
Supplemental disclosure of non-cash investing and financing activities: |  |  |
Purchase of equipment with capital lease obligation |  | $ 530 |

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