The number of payments for a debt instrument.

No definition available.

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Data Type:	xbrli:integerItemType
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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Amount of the required periodic payments including both interest and principal payments.

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Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

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Period Type:	duration

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- Details

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Note 7 - Long-term Debt (Details Textual)		3 Months Ended
Note 7 - Long-term Debt (Details Textual)	Nov. 30, 2017 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($)	Sep. 01, 2018 USD ($)
Payments to Acquire Property, Plant, and Equipment, Total		$ 438,858	$ 805,803
HSBC Bank Mortgage Loan [Member]
Debt Instrument, Number of Payments		120
Debt Instrument, Periodic Payment, Total		$ 25,000
Long-term Debt, Total		$ 2,600,000		$ 2,700,000
HSBC Bank Mortgage Loan [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		1.75%
HSBC Bank Mortgage Loan [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate		0.50%
HSBC Bank Second Mortgage Loan [Member]
Debt Instrument, Number of Payments		60
Debt Instrument, Periodic Payment, Total		$ 62,481
Long-term Debt, Total		$ 9,900,000		$ 10,000,000
Debt Instrument, Face Amount	$ 10,387,500
Debt Instrument, Interest Rate, Stated Percentage		3.9148%
HSBC Bank Second Mortgage Loan [Member] \| Premises at 555 North Research Place, Central Islip, NY [Member]
Payments to Acquire Property, Plant, and Equipment, Total	$ 13,850,000
HSBC Bank [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 7,000,000