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 ($)
 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Cash flows from operating activities:    
Net income (loss) $ 685,731 $ (852,478)
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Fair value of vested stock options 236,832 232,047
Depreciation and amortization 459,110 269,726
Amortization of operating lease right-of-use asset 390,713
Changes in operating assets and liabilities    
Accounts receivable 2,688,617 (692,891)
Inventories (5,671,126) (1,926,562)
Prepaid expenses (819,437) (599,382)
Deposits (24,205)
Refundable income taxes 484,472
Accounts payable (209,759) 31,795
Customer deposits 149,084 162,285
Accrued expenses and other current liabilities 468,042 97,324
Decrease in lease liability (351,752)
Net cash used in operating activities (1,489,473) (3,302,341)
Cash flows from investing activities:    
Acquisition of property and equipment (311,369) (208,998)
Net cash used in investing activities (311,369) (208,998)
Cash flows from financing activities:    
Repayment of notes (172,761) (82,369)
Net cash used in financing activities (172,761) (82,369)
Decrease in cash and cash equivalents (1,973,603) (3,593,708)
Cash and cash equivalents, beginning of period 5,640,078 14,201,163
Cash and cash equivalents, end of period 3,666,475 10,607,455
SUPPLEMENTAL NON-CASH INVESTING AND FINANCING ACTIVITIES:    
Assets acquired through issuance of notes payable 153,307 662,750
Initial recognition of operating lease right-of-use assets and operating lease obligations upon adoption of ASC Topic 842 2,847,495
Reclassification of prepaid expenses to property and equipment $ 113,887