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CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Cash flows from operating activities: |  |
Net loss | $ (11,692,928) | $ (12,855,767)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 547,796 | 633,328
Impairment expense |  | 253,977
Stock based compensation expense | 1,356,351 | 3,257,305
Amortization of debt issuance costs | 1,479 |
Provision for bad debts | 20,552 | 423,920
Change in operating assets and liabilities: |  |
Accounts receivable | 1,081,480 | 3,084,311
Inventories | 105,099 | (28,709)
Prepaid expenses, other current assets and deposits | (268,920) | (167,448)
Accounts payable and accrued liabilities | 426,924 | (610,504)
Deferred revenue | 1,504,958 | (1,469,597)
Net cash used in operating activities | (6,917,209) | (7,479,184)
Cash flows from investing activities: |  |
Purchases of property and equipment | (266,008) | (145,436)
Net cash used in investing activities | (266,008) | (145,436)
Cash flows from financing activities: |  |
Net proceeds from sale of common stock and warrants | 4,233,000 | 6,105,127
Net proceeds from secured convertible promissory notes (including related party of $1,185,000 for the year ended September 30, 2018) | 1,650,000 |
Net cash provided by financing activities | 5,883,000 | 6,105,127
Net decrease in cash and cash equivalents | (1,300,217) | (1,519,493)
Cash and cash equivalents at beginning of year | 2,959,781 | 4,479,274
Cash and cash equivalents at end of year | 1,659,564 | 2,959,781
Supplemental Disclosures of Cash Flow Information: |  |
Cash paid during year for interest | 0 | 0
Cash paid during year for income taxes | 0 | 0
Non-cash investing and financing transactions: |  |
Debt issuance costs included in accounts payable and accrued liabilities | $ 64,848 |
Reclassification of deferred offering costs to additional paid in capital |  | $ 13,986

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