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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Cash flows from operating activities:    
Net income (loss) $ 1,855,694 $ (4,717,916)
Adjustments to reconcile net income loss to net cash used in operating activities:    
Depreciation and amortization 530,843 512,567
Amortization of debt issuance cost 28,107 56,055
Insurance receivable (2,850,000)
Settlement of litigation obligation 3,371,162
Cash expended in excess of rent expense (48,670) (77,288)
Stock-based compensation 568,783 536,388
Bad debt expense (recovery) 127,413 (73,352)
Changes in operating assets and liabilities:    
(Increase) decrease in accounts receivable (2,235,735) 144,537
Increase in contract assets (4,266,430) (285,875)
Decrease (increase) in inventory 1,105,127 (799,600)
Increase in prepaid expenses and other assets (271,157) (142,816)
Decrease in refundable income taxes (647) 437,931
Increase in accounts payable and accrued expenses 69,246 2,473,901
(Decrease) increase in contract liabilities (124,976) 1,433,720
Increase in income taxes payable (948)
Decrease in loss reserve (344,443) (350,434)
Net cash used in operating activities (2,486,631) (852,182)
Cash flows from investing activities:    
Purchase of property and equipment (11,952) (8,000)
Net cash used in investing activities (11,952) (8,000)
Cash flows from financing activities:    
Payments on long-term debt (1,196,276) (1,237,726)
Proceeds of line of credit 261,315
Proceeds from PPP loan   4,795,000
Net cash (used) provided by financing activities (934,961) 3,557,274
Net decrease (increase) in cash and restricted cash (3,433,544) 2,697,092
Cash at beginning of period 6,033,537 5,432,793
Cash at end of period 2,599,993 8,129,885
Cash paid (received) during the period for:    
Interest 588,174 845,962
Income taxes $ 5,923 $ (449,749)