| Schedule of Accrued Liabilities [Table Text Block] |
| | | | June 30, | | | | December 31, | |
| | | | 2022 | | | | 2021 | |
| Accrued Expenses | | | (unaudited) | | | | (audited) | |
| Bonuses | | $ | 196,500 | | | $ | 348,000 | |
| Distribution fees | | | 379,719 | | | | 359,550 | |
| Payroll and related expenses | | | 296,688 | | | | 292,560 | |
| Reserve for outdated material | | | 331,943 | | | | 313,904 | |
| Company 401(k) contribution | | | 54,500 | | | | 109,000 | |
| Audit fee | | | 38,000 | | | | 61,500 | |
| Annual report expenses | | | 50,373 | | | | 64,038 | |
| Sales rebates | | | 169,203 | | | | 56,857 | |
| Other | | | 28,932 | | | | 21,981 | |
| Total accrued expenses | | $ | 1,545,858 | | | $ | 1,627,390 | |
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