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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Cash flows from operating activities:    
Net loss $ (6,330,766) $ (5,650,039)
Adjustments to reconcile net loss to net cash flows provided by operating activities:    
Depreciation and amortization expense 4,935,954 5,328,113
Impairment loss on intangible assets 3,343,842 0
Amortization of operating lease right-of-use asset 834,500 0
Disposal of assets 20,256 0
Stock-based compensation 365,040 447,503
Decrease in non-cash contingent consideration (1,253,840) (2,088,296)
Decrease (increase) in cash surrender value of life insurance policies over premiums paid (124,736) 613,657
Noncash interest expense 15,523 11,237
Noncash gain on RediTrex transaction 0 (37,882)
Gain on receipt of life insurance policies (346,800) (611,330)
Net changes in assets and liabilities affecting operating activities:    
Accounts receivable 3,404,949 (6,115,640)
Inventories, net (23,143) 911,078
Other current assets and other assets 65,684 689,260
Operating lease liabilities (1,405,363) 0
Accounts payable and other current liabilities 3,724,174 14,536,076
Other long-term liabilities (1,131,453) 419,659
Net cash provided by operating activities 6,093,821 8,453,396
Cash flows from investing activities:    
Additions to property and equipment (281,268) (102,148)
Additions to intangible assets (171,783) (1,971,662)
Return of RediTrex 0 1,000,000
Life insurance policy proceeds received 347,356 877,597
Settlement of patent litigation 0 21,757
Cash paid for acquisition 0 (13,500,000)
Net cash used in investing activities (105,695) (13,674,456)
Cash flows from financing activities:    
Borrowings on line of credit 31,475,000 52,900,000
Payments on line of credit (34,890,856) (51,700,000)
Payments made in connection with repurchase of common shares (740,533) (1,053,042)
Cash settlement of contingent consideration (3,268,083) (2,208,744)
Net cash used in financing activities (7,424,472) (2,061,786)
Net decrease in cash and cash equivalents (1,436,346) (7,282,846)
Cash and cash equivalents, beginning of year 19,757,970 27,040,816
Cash and cash equivalents, end of year 18,321,624 19,757,970
Net cash paid during the year for:    
Interest 647,137 523,161
Income taxes 108,823 3,300
Total cash paid included in measurement of lease liability 804,818 1,011,313
Noncash investing and financing activities:    
Change in unpaid invoices for intangible asset additions (51,895) (1,803,403)
Change in unpaid invoices for offering costs 69,001 (94,689)
Lease liability obtained from right-of-use assets 1,158,367 4,590,978
RediTrex forgiveness of milestone payable 0 (1,000,000)
Return of shares related to RediTrex $ 0 $ 399,600