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v3.20.1

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Cash flows from operating activities: |  |
Net loss attributable to common stockholders | $ (1,096,032) | $ (944,729)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Deferred benefit for income taxes | (441,282) | (1,165,219)
(Gain) on disposal of property and equipment | (1,542) | (1,050)
Provision for bad debt | (2,405) | (88)
Warranty reserves | 5,075 | (3,428)
Amortization of deferred gain | (41,479) | (16,479)
Amortization of intangibles | 174,525 | 349,419
Depreciation | 221,300 | 115,308
Inventory reserves | 148,418 | 57,046
Amortization of debt discount | 7,520 | 0
Stock-based compensation expense | 207,761 | 167,474
Changes in operating assets and liabilities: |  |
Accounts receivable | 2,530,072 | 1,868,297
Inventories | (1,826,564) | (2,699,867)
Prepaid expenses and other current assets | (386,005) | (185,596)
Accounts payable | (275,428) | 1,467,746
Accrued expenses and other liabilities | 54,293 | 791,149
Net cash used in operating activities | (721,773) | (200,017)
Cash flows from investing activities: |  |
Purchases of property and equipment, including capitalization of labor costs for test equipment and ERP | (200,049) | (803,243)
Proceeds from sales of property and equipment | 1,542 | 1,050
Net cash used in investing activities | (198,507) | (802,193)
Cash flows from financing activities: |  |
Proceeds from issuance of stock and stock options exercised | 57,000 | 14,201
Payment of payroll taxes on net issuance of employee stock options | (656,845) |
Net (repayment) borrowings on bank lines of credit | (430,313) | 140,967
Net repayments on related-party notes payable | (141,042) |
Net repayments on notes payable | (42,919) | (972,440)
Net cash used in financing activities | (1,214,119) | (817,272)
Net change in cash and cash equivalents | (2,134,399) | (1,819,482)
Effect of exchange rates on cash | (12,916) | 2,660
Cash and cash equivalents, beginning of period | 5,185,321 | 2,272,256
Cash and cash equivalents, end of period | 3,038,006 | 455,434
Supplemental disclosure of cash flow information: |  |
Cash paid during the period for interest | $ 22,369 | 6,268
Cash paid during the period for income taxes |  | $ 62,349

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