Note 12 - Payroll Protection Program Loan (Details Textual)  | 
 Apr. 25, 2020  
USD ($) 
 | 
|---|---|
| Paycheck Protection Program Loan [Member] | |
| Proceeds from Issuance of Debt | $ 176,300 | 
| X | ||||||||||
- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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| X | ||||||||||
- Details 
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