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Note 7 - Common Stock | 12 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Common Stock [Text Block] | 7. Common Stock As of December 31, 2022, the Company’s certificate of incorporation authorized the Company to issue 47,000,000 shares of common stock, par value $0.01 per share. The voting, dividend and liquidation rights of the holders of the Company’s common stock are subject to and qualified by the rights, powers and preferences of the holders of the Company’s Series B convertible preferred stock. Each share of the Company’s common stock is entitled to one vote on all matters submitted to a vote of the Company’s stockholders. Holders of the Company’s common stock are entitled to receive dividends as may be declared by the Company’s board of directors (the "Board"), if any, subject to the preferential dividend rights of the Company’s Series B convertible preferred stock. No cash dividends had been declared or paid during the periods presented. In May 2022, the Board authorized the Company to repurchase up to 500,000 shares of the Company’s common stock pursuant to the 2022 Stock Repurchase Program (the "2022 Stock Repurchase Program"), which ends May 2023. During the year ended December 31, 2022, there were 151,156 shares of common stock repurchased for $187,427 under the 2022 Stock Repurchase Program. There were no share repurchases that were significantly in excess of the current market price at time of repurchase.

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