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Note 16 - Leases (Details Textual) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | May 06, 2021 | Feb. 29, 2020
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Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total | $ 1,000.0 |  |  |  |
Finance Lease, Right-of-Use Asset, Accumulated Amortization | 12,200 |  |  |  |
Property and Equipment, Net [Member] |  |  |  |  |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total | $ 1,000 |  | $ 8,000 |  |
Neeltran Inc. [Member] |  |  |  |  |
Lessee, Finance Lease, Term of Contract (Month) |  |  |  |  | 39 months
Neeltran Inc. [Member] | Property and Equipment, Net [Member] |  |  |  |  |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total |  |  |  | $ 13,200 |
Maximum [Member] |  |  |  |  |
Lessee, Operating Lease, Renewal Term (Year) |  | 5 years |  |  |

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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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- Definition Amount of accumulated amortization of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-4 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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- Definition Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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