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Note 16 - Related Party Transactions - Summary of Leasing Arrangements (Details) - Not-for-profit Corporation [Member] | 12 Months Ended
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Dec. 31, 2020 USD ($) ft²
Lease Term Jan 2019 Through December 2020 [Member] |  |
Building size/yield (Square Foot) | ft² | 2,284 |
Annual Rent | $ 19,414 |
Operating Leases, Future Minimum Payments Receivable, Total | $ 38,828 |
Lease Term Jan 2019 Through December 2020 1 [Member] |  |
Building size/yield (Square Foot) | ft² | 1,817 |
Annual Rent |  | [1]
Operating Leases, Future Minimum Payments Receivable, Total |  | [1]
Lease Term Jan 2019 Through December 2020 2 [Member] |  |
Building size/yield (Square Foot) | ft² | 1,905 |
Annual Rent | $ 16,193 |
Operating Leases, Future Minimum Payments Receivable, Total | $ 32,385 |
[1] | In February 2019, the Company amended the square footage under the master lease with the not-for-profit originally entered into in August 2016. The Company understood that the tenant's main intent was to sublease the space to artists, on a short-term basis, after which such subtenant artists would transition into their own space leased directly from the Company. Under the master lease, the tenant has the right to sublease the space without prior written consent for use as an art studio, art school or related use. Under the terms of the master lease, rent is payable by the tenant only to the extent the space is sublet, at the rent amount per square foot payable by the subtenant up to a maximum of $10 per square foot per year. The lease originally was for 2,130 square feet. The amended maximum annual and total lease commitment of up to $18,170 and $36,340, respectively. Approximately $3,500 in improvements were provided. Any space not subleased may be used by the tenant rent-free for certain stated art uses, although the tenant is responsible for certain passthrough expenses such as electric and heat. Since rent is only due if the space is sublet, the Company believes the fair value of the space to the extent not sublet reflects a below market lease over the term ending December 31, 2020 of $18,170 and total commitments including two-year renewal option of up to $72,680.

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- Definition The annual rent in a leasing arrangement. + References No definition available. + Details
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- Definition Future minimum rental payments in aggregate as of the balance sheet date under operating leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121578510&loc=d3e41551-112718 + Details
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