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v3.19.3

Condensed Consolidated Statement of Cash Flows - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Cash flows from operating activities: |  |
Net loss | $ (2,787,913) | $ (3,065,487)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation expense | 8,697 | 3,227
Amortization of intangible assets | 108,843 | 442,031
Bad debt expense (benefit) | (54,000) |
Interest income on short-term investment |  | (4)
Stock-based compensation | 482,139 | 282,416
Loss on asset disposal | 52,039 |
Loss on equity affiliates |  | 960
Changes in operating assets and liabilities: |  |
Accounts receivable | 363,987 | 247,670
Costs and estimated earnings in excess of billings on uncompleted contracts | 251,636 | (46,514)
Prepaid expenses and other current assets | 821,802 | (17,922)
Accounts payable and accrued expenses | (653,821) | (160,480)
Billings in excess of costs and estimated earnings on uncompleted contracts | (1,093,796) | 408,692
Net cash used in operating activities | (2,500,387) | (1,905,411)
Cash flows from investing activities: |  |
Proceeds from short-term investment |  | 30,037
Purchase of property, plant and equipment | (2,070) | (69,137)
Purchase of intangible asset |  | (5,000)
Investment in and advances to equity affiliates |  | (7,916)
Net cash used in investing activities | (2,070) | (52,016)
Cash flows from financing activities: |  |
Proceeds from public stock offering, net of issuance costs | 1,136,015 |
Net cash provided by financing activities | 1,136,015 |
Net decrease in cash and cash equivalents | (1,366,442) | (1,957,427)
Cash and cash equivalents - beginning of period | 1,368,395 | 4,870,824
Cash and cash equivalents - end of period | 1,953 |
Supplemental disclosure of non-cash operating activities: |  |
Non cash conversion of accrued salary to restricted stock units | $ 162,941 |

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