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Loans Payable - Note 10 - Emergency Injury Disaster Loan - Additional Information (Detail) - USD ($) | Jun. 26, 2020 | Oct. 01, 2016
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Debt instrument face amount |  | $ 3,000,000
Emergency Injury Disaster Loan [Member] |  |
Debt instrument face amount | $ 149,900 |
Debt instrument interest rate | 3.75% |
Debt instrument periodic payment | $ 731 |
Debt instrument maturity period | 30 years |

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