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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Cash Flows from Operating Activities |  |
Net income (loss) | $ 1,838,786 | $ (4,005,814)
Adjustments to reconcile income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 320,744 | 403,716
Bad debt expense | 166,539 | 78,028
Stock based compensation to employees, officers, and directors | 10,688 | 101,782
Loss on sale of property and equipment | 30,325 | 1,156,135
Changes in operating assets and liabilities: |  |
Trade receivables | (689,205) | (262,411)
Trade receivables, related party | 1,412 | 128,509
Inventories | 786,446 | 181,370
Prepaid expenses | (126,362) | 51,518
Note receivable | (666,722) | 0
Other assets | 11,852 | 93,621
Accounts payable and accrued expenses | (731,438) | 3,260,997
Accounts payable, related party | (205,132) | (68,612)
Customer deposits and other liabilities | (499,658) | (737,286)
Net cash provided by operating activities | 248,275 | 381,553
Cash Flows From Investing Activities: |  |
Proceeds from sale of property and equipment | 0 | 2,250,000
Purchase of property and equipment | (376,837) | (1,179,782)
Net cash (used in) provided by investing activities | (376,837) | 1,070,218
Cash Flows From Financing Activities: |  |
Payments on notes payable | 0 | (1,589,522)
Payments on capital leases | (11,312) | (12,069)
Net cash used in financing activities | (11,312) | (1,601,591)
Cash Flows from Discontinued Operations: | 0 | (190,809)
Net change in cash and cash equivalents | (139,874) | (340,629)
Cash and cash equivalents, beginning of period | 1,412,082 | 1,752,711
Cash and cash equivalents, end of period | 1,272,208 | 1,412,082
Supplemental Disclosures |  |
Cash paid during the period for: Interest | 199,243 | 364,532
Cash paid during the period for: Income taxes | 45,309 | 47,916
Non cash activities: |  |
Stock issued to Elemetal for settlement of payable | 0 | 3,500,000
Stock issued to NTR for settlement of debt | $ 0 | $ 2,438,910

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- Definition The increase (decrease) during the period in the amount of customer money held in customer accounts, including security deposits, collateral for a current or future transactions, initial payment of the cost of acquisition or for the right to enter into a contract or agreement as well as other liabilities. + References No definition available. + Details
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