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Bank Debt (Details Textual)
3 Months Ended 6 Months Ended
Mar. 31, 2017
USD ($)
ft²
Mar. 31, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2010
USD ($)
Jun. 30, 2017
USD ($)
Mar. 01, 2017
USD ($)
Bank Debt (Textual)            
Line of credit         $ 500,000  
LIBOR, Description         One-month LIBOR plus a margin of 2.25%. Figures in this table are estimated using an interest rate of approximately 3.42%.  
Debt issuance costs $ 62,314 $ 46,734 $ 34,125 $ 26,489    
TD Bank N.A. [Member]            
Bank Debt (Textual)            
Line of credit   $ 4,500,000       $ 6,500,000
LIBOR, Description        
This note bears interest at a variable rate equal to the one-month LIBOR plus a margin of 2.25% (which was equal to 3.42% as of June 30, 2017).
 
TD Bank N.A. [Member] | Construction Loan One [Member]            
Bank Debt (Textual)            
Line of credit facility, Description   The first instrument (Instrument #4) is comprised of a construction loan of up to $2.5 million and not to exceed 80% of the cost of the equipment to be installed in our commercial-scale Nisin production facility. Effective March 1, 2017, this loan amount was increased by $1.44 million to $3.94 million. As amended, interest only will be payable at a variable rate equal to the one-month LIBOR plus a margin of 2.25% (which was equal to 3.42% as of June 30, 2017) through September 2018, at which time the loan converts to a seven-year term loan facility at the same variable interest rate with monthly principal and interest payments due based on a seven-year amortization schedule.        
TD Bank N.A. [Member] | Construction Loan One [Member] | Maximum [Member]            
Bank Debt (Textual)            
Loan amount           1,440,000
TD Bank N.A. [Member] | Construction Loan One [Member] | Minimum [Member]            
Bank Debt (Textual)            
Loan amount           3,940,000
TD Bank N.A. [Member] | Construction Loan Two [Member]            
Bank Debt (Textual)            
Line of credit facility, Description   The second instrument (Instrument #5) is comprised of a construction loan of up to $2.0 million and not to exceed 80% (75% prior to the March 1, 2017 amendment) of the appraised value of our commercial-scale Nisin production facility in Portland, Maine. Effective March 1, 2017, this loan amount was increased by $560,000 to $2.56 million. As amended, interest only will be payable at a variable rate equal to the one-month LIBOR plus a margin of 2.25% through March 2018, at which time the loan converts to a nine-year term loan facility at the same variable interest rate with monthly principal and interest payments due based on a twenty-year amortization schedule with a balloon principal payment due in March 2027. These credit facilities are secured by substantially all of our assets and are subject to certain financial covenants. As of June 30, 2017, $500,000 was outstanding under the first debt Instrument #4.        
TD Bank N.A. [Member] | Construction Loan Two [Member] | Maximum [Member]            
Bank Debt (Textual)            
Loan amount           2,560,000
TD Bank N.A. [Member] | Construction Loan Two [Member] | Minimum [Member]            
Bank Debt (Textual)            
Loan amount           $ 560,000
Nisin production plant [Member]            
Bank Debt (Textual)            
Proceeds from mortgage note $ 340,000          
LIBOR, Description This note bears interest at a variable rate equal to the one-month LIBOR plus a margin of 2.25% (which was equal to 3.42% as of June 30, 2017) with monthly principal and interest payments due for ten years based on a twenty-year amortization table.          
Warehouse and storage facility area | ft² 4,114          
Interest Rate Swap [Member]            
Bank Debt (Textual)            
Long-term debt, percentage bearing fixed interest, percentage rate     4.38% 6.04%    
Derivative notional amount     $ 2,500,000 $ 1,000,000 $ 3,020,119  
LIBOR, Description         Interest rate exposure on Instrument #1 and Instrument #2 mortgage notes with interest rate swap agreements that effectively converted floating interest rates based on the one-month LIBOR plus a margin of 3.25% and 2.25% to the fixed rates of 6.04% and 4.38%, respectively.  
Mortgages One [Member]            
Bank Debt (Textual)            
Proceeds from mortgage note       $ 1,000,000    
Debt instrument term       15 years    
Balloon principal payment       $ 451,885    
Mortgage loans on real estate periodic payment terms       Will be due during the third quarter of 2020.    
Long-term debt, percentage bearing fixed interest, percentage rate         4.38%  
Mortgages Two [Member]            
Bank Debt (Textual)            
Proceeds from mortgage note     $ 2,500,000      
Debt instrument term     20 years      
Balloon principal payment     $ 1,550,000      
Mortgage loans on real estate periodic payment terms     Will be due during the third quarter of 2025.      
Long-term debt, percentage bearing variable interest, percentage rate         3.46%  
Line of Credit [Member]            
Bank Debt (Textual)            
Extended date of line of credit         May 31, 2018  
LIBOR, Description         Interest on borrowings against the line of credit are variable at the higher of 4.25% per annum or the one-month LIBOR plus 3.5% per annum.  
Line of Credit [Member] | TD Bank N.A. [Member]            
Bank Debt (Textual)            
Line of credit         $ 500,000