Note 15 - Common Stock Purchase Agreement (Details Textual) - USD ($)							12 Months Ended	15 Months Ended
	Sep. 23, 2022	Aug. 23, 2022	Aug. 15, 2022	Aug. 03, 2022	Jul. 25, 2022	Mar. 29, 2022	Nov. 30, 2022	Feb. 28, 2023
Common Stock, Par or Stated Value Per Share						$ 0.01	$ 0.01	$ 0.01
Alumni Capital [Member]
Common Stock Purchase Agreement, Maximum Gross Proceeds from Issuance or Sale of Equity						$ 3,000,000
Common Stock Purchase Agreement, Maximum Shares Authorized to be Issued						50,000
Common Stock Purchase Agreement, Percentage of Common Shares Outstanding						9.99%
Stock Issued During Period, Shares, New Issues (in shares)	65,000	65,000	50,000	50,000	50,000	20,000	40,000	280,000
Common Stock Purchase Agreement, Shares to be Issued						20,000
Equity Issuance Cost, Total							$ 203,000
Stock Issued During Period, Value, New Issues							$ 160,000
Common Stock Purchase Agreement, Funding Remaining to be Utilized								$ 2,454,472
Alumni Capital [Member] | Minimum [Member]
Common Stock Purchase Agreement, Discount on Shares, Percent								3.00%
Alumni Capital [Member] | Maximum [Member]
Common Stock Purchase Agreement, Discount on Shares, Percent								5.00%