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Consolidated Statements of Cash Flows - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Dec. 31, 2016
Cash flows from operating activities:                  
Net income (loss)         $ (3,602,799) $ (3,418,904) $ (3,546,511)    
Discontinued operations net of tax $ 503,318 $ 495,410 $ 872,064 $ 818,273 1,994,322 3,206,875 5,665,177    
Net income (loss) from continuing operations (4,387,576) (350,749) (1,787,530) (1,883,418) (5,597,121) (6,625,779) (9,211,688)    
Adjustments to reconcile net income (loss) to net cash flows provided by (used in) operating activities:                  
Depreciation and amortization expense         4,606,366 4,748,565 4,404,175    
Deferred tax expense         0 21,802 65,408    
Share-based compensation         741,867 1,046,516 1,485,898    
Decrease in non-cash contingent consideration         (1,147,750) (1,160,202) (804,167)    
Write off of deferred offering costs         0 440,091 0    
Increase in cash surrender value of life insurance policies over premiums paid         (282,207) (154,611) 0    
Noncash interest expense         34,053 47,636 47,525    
Noncash investment gains         0 0 (26,315)    
Gain on forgiveness of debt         (2,187,140) 0 0    
Net changes in assets and liabilities affecting operating activities:                  
Accounts receivable         5,500,367 (4,518,707) (1,399,012)    
Inventories         4,816,450 2,131,347 1,106,175    
Prepaid, other current assets and other assets         (35,568) 1,210,489 (615,199)    
Accounts payable and other current liabilities         (757,591) 6,569,002 3,221,780    
Other long-term liabilities         (1,343,605) (1,859,330) (729,820)    
Net cash provided by (used in) operating activities from continuing operations         4,348,121 1,896,819 (2,455,240)    
Discontinued operations         1,994,322 3,518,242 5,511,596    
Net cash provided by (used in) operating activities         6,342,443 5,415,061 3,056,356    
Cash flows from investing activities:                  
Additions to property and equipment         (103,532) (140,817) (246,202)    
Additions to intangible assets         (250,930) (1,973,110) (772,944)    
Proceeds from Life Insurance Policy         85,944 460,888 0    
Increase (Decrease) In Proceeds from Life Insurance Policy         (33,375) (104,750) 0    
Cash paid for acquisition         0 0 (5,000,000)    
Note receivable investment funding         (200,000) 0 0    
Proceeds from sale of marketable securities         0 0 20,062,132    
Purchases of marketable securities         0 0 (11,745,138)    
Net cash provided by (used in) investing activities         (501,893) (1,757,789) 2,297,848    
Cash flows from financing activities:                  
Borrowings on line of credit         59,000,000 59,000,000 76,000,000    
Repayments on line of credit         (59,000,000) (62,500,000) (77,500,000)    
Repurchase of common shares         (1,386,849) (1,851,526) (3,494,921)    
Payment for Contingent Consideration Liability, Financing Activities         (2,166,681) (819,180) (1,033,108)    
Payments for Repurchase of Redeemable Noncontrolling Interest         0     $ (800,000) $ 0
Proceeds from Noncontrolling Interests         0 0 1,000,000    
Payments of deferred equity offering costs         0 (135,405) 0    
Payments of Financing Costs         0 (10,000) (52,500)    
Net cash provided by (used in) financing activities         (3,553,530) (7,116,111) (5,080,529)    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total         2,287,020 (3,458,839) 273,675    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance   $ 24,753,796   $ 28,212,635 24,753,796 28,212,635 27,938,960    
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance $ 27,040,816   $ 24,753,796   27,040,816 24,753,796 28,212,635    
Net cash paid (refunded) during the year for:                  
Interest         63,978 215,991 198,661    
Income taxes         (327) (91,486) 16,694    
Noncash investing and financing activities:                  
Change in unpaid invoices for purchases of intangibles         (43,471) (340,997) (576,837)    
Change in unpaid invoices for offering costs         (90,512) 0 0    
Deferred offering costs included in accounts payable and other accrued expenses         0 200,000 0    
Recognition of operating lease assets and liabilities through adoption of ASC 842         0 0 3,629,320    
Vesting of shares related to RediTrex approval         0 0 862,200    
Repurchase of subsidiary shares from noncontrolling interests         0 0 (800,000)    
Additions to intangible assets from final purchase price allocation         $ 0 $ 0 $ 148,000