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Note 14 - Sale of 555 Building (Details Textual) - USD ($) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 26, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Proceeds from Sale of Buildings |  |  |  | $ 0 | $ 23,075,477
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |  | $ 0 | $ 6,894,109 | $ 0 | $ 6,894,109
The Premises at 555 N Research Place, Central Islip, NY [Member] |  |  |  |  |
Proceeds from Sale of Buildings | $ 24,400,000 |  |  |  |
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property | 6,900,000 |  |  |  |
Proceeds from Sale of Buildings, Net | 14,000,000.0 |  |  |  |
The Premises at 555 N Research Place, Central Islip, NY [Member] | HSBC Bank Second Mortgage Loan [Member] |  |  |  |  |
Repayments of Debt | $ 9,400,000 |  |  |  |

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2443-110228 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230 + Details
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