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v3.23.1

Note 2 - Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Schedule of Cash, Cash Equivalents and Restricted Cash [Table Text Block] |
|  | March 31, 2023 |  |  | December 31, 2022 |
Cash and cash equivalents |  | $ | 15,428 |  |  | $ | 13,434 |
Restricted cash |  |  | 516 |  |  |  | 1,142 |
Total cash, cash equivalents and restricted cash |  | $ | 15,944 |  |  | $ | 14,576 |
Schedule of Weighted Average Number of Shares [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
Weighted average common shares outstanding–basic |  |  | 10,755,729 |  |  |  | 10,617,271 |
Potentially dilutive securities: |  |  |  |  |  |  |  |
Unvested shares of restricted stock and employee stock options |  |  | 332,935 |  |  |  | 225,321 |
Weighted average common shares and common share equivalents outstanding–diluted |  |  | 11,088,664 |  |  |  | 10,842,592 |
Average number of potentially dilutive securities excluded from calculation |  |  | 154,429 |  |  |  | 318,574 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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