11. BANK DEBT

We have in place five credit facilities and a line of credit with TD Bank N.A. These five credit facilities are secured by substantially all of our assets and are subject to certain restrictions and financial covenants.

The first note (Loan #1) is not to exceed 80% of the appraised value of our corporate headquarters and production and research facility at 56 Evergreen Drive in Portland. Proceeds of $1,000,000 were received during the third quarter of 2010 with monthly principal and interest payments due for ten years, calculated based on a fifteen-year amortization schedule. A balloon principal payment of $451,885 will be due during the third quarter of 2020. As of December 31, 2018, $562,604 was outstanding under Loan #1.

Proceeds from a $2,500,000 second mortgage on this corporate headquarters (Loan #2) were received during the third quarter of 2015 with monthly principal and interest payments due for ten years, calculated based on a twenty-year amortization schedule. A balloon principal payment of approximately $1,550,000 will be due during the third quarter of 2025. As of December 31, 2018, $2,233,768 was outstanding under Loan #2.

During the first quarter of 2016, we entered into two additional credit facilities (Loans #3 and #4) aggregating up to approximately $4,500,000. As a result of loan amendments entered into the during the first quarter of 2017, these two credit facilities were increased to up to $6,500,000, subject to certain restrictions set forth in the agreements. Loan #3 is comprised of a construction loan of up to $3,940,000 and not to exceed 80% of the cost of the equipment installed in our commercial-scale Nisin production facility at 33 Caddie Lane in Portland. As amended, interest only was payable at a variable rate equal to the one-month LIBOR (adjusted at each monthly payment date) plus a margin of 2.25% through September 2018, at which time the loan converted to a seven-year term loan facility at the same variable interest rate (which was equal to 4.60% as of December 31, 2018) with monthly principal and interest payments due based on a seven-year amortization schedule. As of December 31, 2018, $3,799,286 was outstanding under Loan #3. Loan #4 is comprised of a construction loan of up to $2,560,000 and not to exceed 80% (75% prior to the 2017 amendments) of the appraised value of our commercial-scale Nisin production facility. As amended, interest only was payable at a variable rate equal to the one-month LIBOR (adjusted at each monthly payment date) plus a margin of 2.25% through March 2018, at which time the loan converted to a term loan facility at the same variable interest rate (which was equal to 4.60% as of December 31, 2018) with monthly principal and interest payments due for ten years, calculated based on a twenty-year amortization schedule. A balloon principal payment of approximately $1,408,000 will be due during the first quarter of 2027. As of December 31, 2018, $2,464,000 was outstanding under Loan #4.

The fifth note (Loan #5) is a mortgage that is secured by the 4,114 square foot warehouse and storage facility we acquired adjacent to our Nisin production facility. Proceeds of $340,000 were received during the first quarter of 2017. This note bears interest at a variable rate equal to the one-month LIBOR (adjusted at each monthly payment date) plus a margin of 2.25% (which was equal to 4.71% as of December 31, 2018) with monthly principal and interest payments due for ten years, calculated based on a twenty-year amortization schedule. A balloon principal payment of approximately $208,000 will be due during the first quarter of 2027. As of December 31, 2018, $320,767 was outstanding under Loan #5.

We hedged our interest rate exposures on Loan #1 and Loan #2 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. As of December 31, 2018, the variable rates on these two mortgage notes were 5.68% and 4.73%, respectively. All derivatives are recognized on the balance sheet at their fair value. At the time of the closings and thereafter, the agreements were determined to be highly effective in hedging the variability of the identified cash flows and have been designated as cash flow hedges of the variability in the hedged interest payments. Changes in the fair value of the interest rate swap agreements are recorded in other comprehensive income, net of taxes. The original notional amounts of the interest rate swap agreements of $1,000,000 and $2,500,000 amortize in accordance with the amortization of the mortgage notes. The notional amount of the interest rate swaps was $2,796,372 as of December 31, 2018. The fair values of the interest rate swaps have been determined using observable market-based inputs or unobservable inputs that are corroborated by market data. Accordingly, the interest rate swaps are classified as level 2 within the fair value hierarchy provided in Codification Topic 820, Fair Value Measurements and Disclosures.

	During the Years Ended December 31,
	2018		2017
Payments required by interest rate swaps	$	9,581	$	37,502
Other comprehensive income, net of taxes	$	30,795	$	23,264

In connection with the credit facilities entered into during the third quarters of 2010 and 2015, we incurred debt issue costs of $26,489 and $34,125, respectively. In connection with the credit facilities and amendments thereto entered into during the first quarters of 2016 and 2017, we incurred debt issue costs of $46,734 and $68,072, respectively. The 2017 amendments to Loan #3 and Loan #4 were accounted for as modifications. The amortization of debt issuance costs is being recorded as a component of other expenses and is being amortized over the underlying terms of the respective credit facilities.

Debt proceeds received and principal repayments made during the years ended December 31, 2018 and 2017 are reflected in the following table by year and by loan:

	During the Year Ended December 31, 2018					During the Year Ended December 31, 2017
	Proceeds from Debt Issuance		Debt Principal Repayments			Proceeds from Debt Issuance		Debt Principal Repayments
Loan #1	$	—	$	(64,876	)	$	—	$	(61,056	)
Loan #2		—		(86,097	)		—		(82,308	)
Loan #3		426,499		(140,714	)		3,513,501		—
Loan #4		267,141		(96,000	)		2,292,859		—
Loan #5		—		(10,621	)		340,000		(8,612	)
Total	$	693,640	$	(398,308	)	$	6,146,360	$	(151,976	)

Principal payments (net of debt issuance costs) due under bank loans outstanding as of December 31, 2018 (excluding our $500,000 line of credit) are reflected in the following table by the year that payments are due:

	Year ending 12/31/2019		Year ending 12/31/2020		Year ending 12/31/2021		Year ending 12/31/2022		Year Ending 12/31/2023		After 12/31/2023		Total
Loan #1	$	68,908	$	493,696	$	—	$	—	$	—	$	—	$	562,604
Loan #2		89,997		94,005		98,538		103,077		107,769		1,740,382		2,233,768
Loan #3⁽¹⁾		562,857		562,857		562,857		562,857		562,857		985,001		3,799,286
Loan #4⁽¹⁾		128,000		128,000		128,000		128,000		128,000		1,824,000		2,464,000
Loan #5⁽²⁾		11,564		12,102		12,664		13,253		13,869		257,315		320,767
Subtotal	$	861,326	$	1,290,660	$	802,059	$	807,187	$	812,495	$	4,806,698		9,380,425
Debt Issuance Costs														(114,587	)
Total													$	9,265,838

(1)

These notes bear interest at a variable rate equal to the one-month LIBOR plus a margin of 2.25%. Figures in this table are estimated using an interest rate of approximately 4.60%. The actual interest rate and principal payments will be different.

(2)

This note bears interest at a variable rate equal to the one-month LIBOR plus a margin of 2.25%. Figures in this table are estimated using an interest rate of approximately 4.55%. The actual interest rate and principal payments will be different.

During the third quarter of 2010, we entered into a $500,000 line of credit with TD Bank N.A., which is secured by substantially all of our assets and is subject to certain restrictions and financial covenants. This line of credit has been renewed approximately annually since then, is available as needed and has been extended through May 31, 2020. As of December 31, 2018, $500,000 was outstanding under this line of credit. There was no outstanding balance under this line of credit as of December 31, 2017. Interest on borrowings against the line of credit is variable at the higher of 4.25% per annum or the one-month LIBOR plus 3.5% per annum.