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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Cash flows from operating activities:    
Net loss $ (2,594,141) $ (3,070,934)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 769,690 729,319
Amortization of debt issuance cost 80,764 67,479
Cash expended in excess of rent expense (115,932) (84,036)
Stock-based compensation 677,489 661,231
Common stock issued as employee compensation 32,324
Bad debt expense (recovery) (47,410) 99,242
Changes in operating assets and liabilities:    
  Increase in accounts receivable (232,310) (1,661,439)
  (Increase) decrease in contract assets (3,128,460) 3,101,851
  Increase in inventory (2,850,707) (764,898)
  Decrease in prepaid expenses and other assets 121,075 797,622
  (Increase) decrease in refundable income taxes 439,445 (188,635)
  Increase in accounts payable and accrued expenses 5,770,902 1,072,849
  Decrease in contract liabilities (1,092,266) (4,069,161)
  Decrease in loss contract reserve (1,081,516) (768,514)
  Decrease in income taxes payable 5,784
    Net cash used in operating activities (3,283,377) (4,039,916)
Cash flows from investing activities:    
    Purchase of property and equipment (11,888) (334,909)
      Net cash used in investing activities (11,888) (334,909)
Cash flows from financing activities:    
Payments on long-term debt (1,855,209) (1,840,210)
Proceeds from line of credit 3,000,000
Payments on line of credit (300,000)
Proceeds from PPP loan 4,795,000
Stock offering costs paid (119,571)
Debt issue costs paid (107,540) (25,000)
  Net cash provided by financing activities 2,832,251 715,219
  Net decrease in cash and restricted cash (463,014) (3,659,606)
Cash and restricted cash at beginning of period 5,432,793 6,128,142
Cash and restricted cash at end of period 4,969,779 2,468,536
Cash (received) paid during the period for:    
  Interest 1,156,126 1,406,581
  Income taxes (449,749) 103,927
Non-cash investing and financing activities:    
  Refinance revolving loan 6,000,000
  Equipment acquired under financing lease $ 399,800