Annual report pursuant to Section 13 and 15(d)

Note 16 - Subsequent Events (Details Textual)

v3.21.1
Note 16 - Subsequent Events (Details Textual) - USD ($)
12 Months Ended
May 31, 2021
May 20, 2021
Mar. 28, 2021
May 05, 2021
Revolving Credit Facility [Member] | Prime Rate [Member]        
Debt Instrument Basis Spread Below Variable Rate     0.50%  
Debt Instrument, Basis Spread on Variable Rate     2.00%  
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate     1.75%  
Subsequent Event [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]        
Debt Instrument Basis Spread Below Variable Rate 1.00%      
Subsequent Event [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate 1.50%      
Subsequent Event [Member] | Paycheck Protection Program CARES Act [Member]        
Debt Instrument, Decrease, Forgiveness   $ 1,963,800    
Interest Payable   $ 22,000    
Subsequent Event [Member] | Discontinued Operations, Disposed of by Means Other than Sale [Member] | Carousel Designs, LLC [Member] | Employee Severance [Member]        
Restructuring and Related Cost, Expected Cost, Total       $ 100,000
Subsequent Event [Member] | Discontinued Operations, Disposed of by Means Other than Sale [Member] | Carousel Designs, LLC [Member] | Contract Termination [Member] | Minimum [Member]        
Restructuring and Related Cost, Expected Cost, Total       200,000
Subsequent Event [Member] | Discontinued Operations, Disposed of by Means Other than Sale [Member] | Carousel Designs, LLC [Member] | Contract Termination [Member] | Maximum [Member]        
Restructuring and Related Cost, Expected Cost, Total       $ 500,000