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Summary of Significant Accounting Policies (Details Textual) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Jun. 30, 2018 | Dec. 31, 2020
Summary of Significant Accounting Policies (Textual) |  |  |  |
Federal deposit insurance corporation limits | $ 250,000 |  |  |
Property, plant and equipment, description | The facility we have constructed to produce the Nisin Drug Substance for Re-Tain™ is being depreciated over 39 years from when a certificate of occupancy was issued during the fourth quarter of 2017. We began depreciating the equipment for our Nisin Drug Substance facility when it was placed in service during the third quarter of 2018. Approximately 88% of these assets are being depreciated over ten years. We began depreciating the leasehold improvements to our new First Defense® production facility at 175 Industrial Way over the remainder of the ten-year lease term beginning when a certificate of occupancy was issued during the second quarter of 2020. |  |  |
Concentration risk percentage, description | Sales to significant customers that amounted to 10% or more of total product sales. |  |  |
U.S. government aggregated in excess of FDIC limits | $ 1,747,823 |  |  | $ 751,050
Advertising expenses | 15,650 | $ 18,526 |  |
Stock-based compensation | $ 34,629 | $ 77,404 |  |
Non-cash income tax expense to create a full valuation allowance against our net deferred tax assets |  |  | $ 563,252 |
Outstanding stock options not included in the calculation because the effect would be anti-dilutive | 409,000 | 406,500 |  |
Weighted average number of shares outstanding | 7,219,436 | 7,212,919 |  |

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