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Note 1 - Basis of Presentation (Details Textual) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Jan. 01, 2019 | Dec. 31, 2018
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | 471,144 | 471,144 |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | 0 | 0 |  |
Operating Lease, Right-of-Use Asset | $ 2,477,817 |  |  |
Operating Lease, Liability, Total | $ 2,478,000 |  |  |
Accounting Standards Update 2016-02 [Member] |  |  |  |
Operating Lease, Right-of-Use Asset |  |  | $ 2,800,000 |
Operating Lease, Liability, Total |  |  | $ 2,800,000 |

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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