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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Cash flows from operating activities:    
Net income (loss) $ 6,820,373 $ (3,654,753)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 1,029,067 1,032,986
Amortization of debt issuance costs 49,642 95,429
Cash expended in excess of rent expense (51,925) (137,737)
Stock-based compensation expense 828,286 711,344
Bad debt expense (recovery) 127,413 (23,395)
Forgiveness of PPP loan (4,795,000)
Changes in operating assets and liabilities:    
(Increase) decrease in accounts receivable (132,221) 2,090,091
Increase in contract assets (4,729,701) (4,448,831)
Decrease (increase) in inventory 2,357,363 (1,480,035)
(Increase) decrease in prepaid expenses and other current assets (321,422) 187,107
Decrease in refundable income taxes 434,904
(Decrease) increase in accounts payable and accrued expenses (1,499,000) 7,458,527
Increase (decrease) in contract liabilities 3,472,217 (1,911,158)
Decrease in loss reserve (513,533) (1,956,666)
Increase in insurance receivable (2,850,000)
Increase in settlement of litigation obligation 3,003,259
Increase (decrease) in income taxes payable 4,217 (268)
Net cash provided by (used in) operating activities 2,799,035 (1,602,455)
Cash flows from investing activities:    
Purchase of property and equipment (29,188) (146,788)
Net cash used in investing activities (29,188) (146,788)
Cash flows from financing activities:    
Proceeds from PPP loan 4,795,000
Proceeds from line of credit 511,315
Principal payments on long-term debt (3,005,833) (2,337,473)
Debt issuance costs (107,540)
Net cash (used) provided by financing activities (2,494,518) 2,349,987
Net increase in cash and restricted cash 275,329 600,744
Cash at beginning of year 6,033,537 5,432,793
Cash at end of year 6,308,866 6,033,537
Supplemental schedule of noncash investing activities:    
Eqsuipment acquired under capital lease 134,900
Supplemental schedule of cash flow information:    
Cash paid during the year for interest 1,139,532 1,490,152
Cash paid for (received from) income taxes $ 10,392 $ (488,052)