Quarterly report pursuant to Section 13 or 15(d)

CONDENSED STATEMENTS OF CASH FLOW (UNAUDITED)

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CONDENSED STATEMENTS OF CASH FLOW (UNAUDITED) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Cash flows from operating activities:    
Net income (loss) $ 70,703 $ (318,802)
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Fair value of vested stock options 78,944 24,719
Depreciation and amortization 143,261 76,350
Amortization of operating lease right-of-use asset 89,155
Changes in operating assets and liabilities    
Accounts receivable (1,489,838) (1,745,659)
Inventories (1,645,179) 57,305
Prepaid expenses (899,277) (291,160)
Deposits (1,000)
Refundable income taxes 484,472
Accounts payable 524,267 (303,566)
Income taxes payable
Customer deposits 288,916 66,557
Accrued expenses and other current liabilities 461,321 27,561
Repayment of lease obligations (84,058)
Net cash used in operating activities (1,977,313) (2,407,695)
Cash flows from investing activities:    
Acquisition of property and equipment (79,029) (55,062)
Net cash used in investing activities (79,029) (55,062)
Cash flows from financing activities:    
Repayment of notes (49,166) (27,234)
Net cash used in financing activities (49,166) (27,234)
Decrease in cash and cash equivalents (2,105,508) (2,489,991)
Cash and cash equivalents, beginning of period 5,640,078 14,201,163
Cash and cash equivalents, end of period 3,534,570 11,711,172
Supplemental non-cash investing and financing activities:    
Initial recognition of operating lease right-of-use assets and operating lease obligations upon adoption of ASC Topic 842 2,760,375
Reclass of prepaid asset to property and equipment $ 113,887