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Condensed Consolidated Statements of Cash Flows - USD ($)
 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Cash flows from operating activities:    
Net income (loss) $ (3,190,325) $ 281,459
Discontinued operations 0 1,491,004
Net income (loss) from continuing operations (3,190,325) (1,209,545)
Adjustments to reconcile net income (loss) from continuing operations to net cash provided by operating activities:    
Depreciation and amortization expense 4,816,630 3,529,245
Share-based compensation 320,598 517,081
Decrease in non-cash contingent consideration (1,051,908) (632,646)
Decrease (increase) in cash surrender value of life insurance policies over premiums paid 708,293 (52,070)
Increase in noncash interest expense 7,608 33,943
Gain on forgiveness of debt 0 (2,187,140)
Gain on receivable of life insurance policy proceeds (611,330) 0
Net changes in assets and liabilities affecting operating activities:    
Accounts receivable (8,184,656) 2,527,183
Inventories 1,338,881 2,555,393
Other current assets and other assets 4,355,396 1,627,350
Accounts payable and other current liabilities 8,778,631 (2,873,596)
Other long-term liabilities (2,472,453) (943,439)
Net cash provided by operating activities from continuing operations 4,815,365 2,891,759
Discontinued operations 0 1,491,004
Net cash provided by operating activities 4,815,365 4,382,763
Cash flows from investing activities:    
Additions to property and equipment (255,676) (94,485)
Settlement of patent litigation 21,757 0
Life insurance policy proceeds received 877,597 0
Note receivable investment funding 0 (200,000)
Cash paid for acquisitions (13,500,000) 0
Additions to intangible assets (177,362) (180,613)
Net cash used in investing activities (13,033,684) (475,098)
Cash flows from financing activities:    
Borrowings on line of credit 46,700,000 45,000,000
Repayments on line of credit (44,000,000) (45,000,000)
Cash payment of contingent consideration (1,117,576) (1,792,573)
Repurchase of common shares (863,383) (1,025,657)
Net cash provided by (used in) financing activities 719,041 (2,818,230)
Net increase (decrease) in cash and cash equivalents (7,499,278) 1,089,435
Cash and cash equivalents at beginning of period 27,040,816 24,753,796
Cash and cash equivalents at end of period $ 19,541,538 $ 25,843,231