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Note 8 - Corporate Debt (Details Textual)
Aug. 30, 2025
USD ($)
Aug. 30, 2025
INR (₨)
Jan. 06, 2025
Aug. 31, 2025
USD ($)
Aug. 31, 2025
INR (₨)
Aug. 30, 2025
INR (₨)
May 29, 2025
USD ($)
May 29, 2025
CNY (¥)
Aug. 31, 2024
USD ($)
May 31, 2024
Jan. 06, 2023
USD ($)
NTIC China [Member] | Term Loan in May [Member]                      
Debt Instrument, Face Amount             $ 1,390,000 ¥ 10,000,000      
Debt Instrument, Interest Rate, Stated Percentage       2.96% 2.96%            
Long-Term Debt       $ 2,804,695         $ 2,820,835    
NTIC China [Member] | Term Loan in April [Member]                      
Debt Instrument, Interest Rate, Stated Percentage       2.75% 2.75%            
IDFC First Bank Limited [Member] | Natur-Tec India [Member] | Foreign Currency Term Loan Agreement [Member]                      
Debt Instrument, Face Amount $ 600,000         ₨ 50,000,000          
Debt Instrument, Interest Rate, Stated Percentage 6.45%         6.45%          
Long-Term Debt       $ 522,545 ₨ 46,100,000            
Proceeds from Issuance of Debt $ 522,545 ₨ 46,100,000                  
Debt Instrument, Repayments, Number of Monthly Installments 85         85          
Debt Instrument, Periodic Payment $ 7,899                    
Debt Instrument, Collateral, Lien on Cash Deposits $ 539,731         ₨ 47,600,000          
Long-Term Debt, Current Maturities       55,561 6,170,000            
Long-Term Debt, Excluding Current Maturities       $ 466,984 ₨ 39,930,000            
Revolving Credit Facility [Member] | JP Morgan Chase Bank [Member]                      
Line of Credit Facility, Maximum Borrowing Capacity                     $ 10,000,000
Long-Term Line of Credit                 $ 9,329,021    
CB Floating Rate Floor     2.50%                
Line of Credit Facility, Interest Rate at Period End       6.61% 6.61%         7.44%  
Debt Instrument, Covenants, Fixed Charge Coverage Ratio     1.25                
Revolving Credit Facility [Member] | JP Morgan Chase Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]                      
Debt Instrument, Basis Spread on Variable Rate     0.10%                
Revolving Credit Facility [Member] | JP Morgan Chase Bank [Member] | Adjusted SOFR Rate Applicable Margin [Member]                      
Debt Instrument, Basis Spread on Variable Rate     2.35%                
Standby Letters of Credit [Member] | JP Morgan Chase Bank [Member]                      
Line of Credit Facility, Maximum Borrowing Capacity                     $ 5,000,000