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Note 1 - Organization (Details Textual)
3 Months Ended
May 03, 2020
USD ($)
Dec. 18, 2015
Mar. 31, 2020
Apr. 27, 2020
USD ($)
Number of Operating Segments     4  
Subsequent Event [Member]        
ATM Program, Maximum Common Stock Sales       $ 4,300,000
Proceeds from Paycheck Protection Program Under CARES Act $ 900,505      
Reverse Stock Split [Member]        
Stockholders' Equity Note, Stock Split, Conversion Ratio   25