Note 7 - Subsequent Events	3 Months Ended
Mar. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	7. Subsequent Events In addition to the subsequent events discussed elsewhere in these notes, see below for a discussion of subsequent events occurring after March 31, 2023. On May 5, 2023, the Company received a letter from NASDAQ notifying the Company that for the last 30 consecutive business days the bid price for the Company's common stock had closed below the minimum $1.00 per share requirement for continued inclusion on the Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2) (the "Bid Price Rule"). The deficiency letter does not result in the immediate delisting of the Company's common stock from the Nasdaq Capital Market. In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been provided an initial period of 180 calendar days, or until November 1, 2023, to regain compliance with the Bid Price Rule. If, at any time before November 1, 2023, the bid price for the Company's common stock closes at $1.00 or more for a minimum of 10 consecutive business days, the Nasdaq Staff will provide written notification to the Company that it complies with the Bid Price Rule, unless the Staff exercises its discretion to extend this 10 day period pursuant to Nasdaq Listing Rule 5810(c)(3)(G). If the Company is not in compliance with the Bid Price Rule by November 1, 2023, the Company may be afforded a second 180 calendar day period to regain compliance. To qualify, the Company would be required to meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for the Nasdaq Capital Market, except for the minimum bid price requirement. In addition, the Company would be required to notify Nasdaq of its intent to cure the minimum bid price deficiency, which may include, if necessary, implementing a reverse stock split. If the Company does not regain compliance with the Bid Price Rule by November 1, 2023, and is not eligible for an additional compliance period at that time, the Nasdaq Staff will provide written notification to the Company that its common stock may be delisted. The Company would then be entitled to appeal the Nasdaq Staff’s determination to a NASDAQ Listing Qualifications Panel and request a hearing. There can be no assurance that, if the Company does appeal a delisting determination by the Nasdaq Staff to the NASDAQ Listing Qualifications Panel, that such appeal would be successful. The Company intends to monitor the closing bid price of its common stock and may, if appropriate, consider available options to regain compliance with the Bid Price Rule, which could include effecting a reverse stock split. However, there can be no assurance that the Company will be able to regain compliance with the Bid Price Rule.

Note 7 - Subsequent Events

3 Months Ended

Mar. 31, 2023

7. Subsequent Events

In addition to the subsequent events discussed elsewhere in these notes, see below for a discussion of subsequent events occurring after March 31, 2023.

On May 5, 2023, the Company received a letter from NASDAQ notifying the Company that for the last 30 consecutive business days the bid price for the Company's common stock had closed below the minimum $1.00 per share requirement for continued inclusion on the Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2) (the "Bid Price Rule"). The deficiency letter does not result in the immediate delisting of the Company's common stock from the Nasdaq Capital Market. In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been provided an initial period of 180 calendar days, or until November 1, 2023, to regain compliance with the Bid Price Rule. If, at any time before November 1, 2023, the bid price for the Company's common stock closes at $1.00 or more for a minimum of 10 consecutive business days, the Nasdaq Staff will provide written notification to the Company that it complies with the Bid Price Rule, unless the Staff exercises its discretion to extend this 10 day period pursuant to Nasdaq Listing Rule 5810(c)(3)(G). If the Company is not in compliance with the Bid Price Rule by November 1, 2023, the Company may be afforded a second 180 calendar day period to regain compliance. To qualify, the Company would be required to meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for the Nasdaq Capital Market, except for the minimum bid price requirement. In addition, the Company would be required to notify Nasdaq of its intent to cure the minimum bid price deficiency, which may include, if necessary, implementing a reverse stock split. If the Company does not regain compliance with the Bid Price Rule by November 1, 2023, and is not eligible for an additional compliance period at that time, the Nasdaq Staff will provide written notification to the Company that its common stock may be delisted. The Company would then be entitled to appeal the Nasdaq Staff’s determination to a NASDAQ Listing Qualifications Panel and request a hearing. There can be no assurance that, if the Company does appeal a delisting determination by the Nasdaq Staff to the NASDAQ Listing Qualifications Panel, that such appeal would be successful. The Company intends to monitor the closing bid price of its common stock and may, if appropriate, consider available options to regain compliance with the Bid Price Rule, which could include effecting a reverse stock split. However, there can be no assurance that the Company will be able to regain compliance with the Bid Price Rule.