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Note 8 - Long-term Debt (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Long-term Debt Instruments [Table Text Block] |
Long-term debt as of December 31 consists of the following: |  |  |  |  |  |  |  |
|  | 2018 |  |  | 2017 |
HSBC $10,387,500 Mortgage payable secured by real property Buildings and improvements at 555 N Research Drive, Central Islip, NY payable in monthly principle installments of $62,481 including Interest at a rate of 3.9148% maturing on December 1, 2022. |  | $ | 10,043,802 |  |  | $ | 10,387,500 |
MesoScribe Technologies, Inc. $300,000 acquisition related contingent payment |  |  | 200,000 |  |  |  | 300,000 |
HSBC $6,000,000 Mortgage payable secured by building Buildings and improvements at 355 South Technology Drive, Central Islip, NY payable in monthly principle installments of $25,000 plus interest. Interest presently accrues at our option, at the variable rate of LIBOR plus 1.75% or HSBC’s Prime rate minus 0.50% The loan matures on March 1, 2022. |  |  | 2,665,508 |  |  |  | 2,965,507 |
Total long-term debt |  | $ | 12,909,310 |  |  | $ | 13,653,007 |
Less: Current maturities |  |  | (857,590 | ) |  |  | (747,324 | )
Long-term debt |  | $ | 12,051,720 |  |  | $ | 12,905,683 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
2019 |  | $ | 857,590 |
2020 |  |  | 674,593 |
2021 |  |  | 690,813 |
2022 |  |  | 10,686,314 |
2023 |  |  | - |
Thereafter |  |  | - |
Total long-term debt |  | $ | 12,909,310 |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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