Note 21 - Subsequent Events (Details Textual) - USD ($)			3 Months Ended	12 Months Ended
	May 14, 2024	Apr. 01, 2024	Jul. 01, 2024	Mar. 31, 2024	Mar. 31, 2023
Treasury Stock, Shares, Acquired (in shares)				1,639,125	2,220,914
Preferred Stock, Par or Stated Value Per Share (in dollars per share)				$ 0.001	$ 0.001
Subsequent Event [Member]
Warrants and Rights Outstanding, Term (Year)		3 years
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 2.1
Aggregate Outstanding Preferred Stock Required to be Purchased		$ 5,000,000
Subsequent Event [Member] | H S C P M [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		910,340
Subsequent Event [Member] | H S C P [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		389,660
Subsequent Event [Member] | Trinad Capital [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		535,399
Subsequent Event [Member] | Roth Capital [Member]
Sale of Stocks, Maximum Amount Authorized to Sell	$ 25,000,000
Sale of Stock, Maximum Price Allowed (in dollars per share)	$ 5
Commission Fee, Percentage of Gross Sale Price Per Share	3.00%
Commission Fee, Maximum Amount Allowed	$ 50,000
Subsequent Event [Member] | Conversion of Series A Preferred Stock into Common Stock [Member]
Conversion of Stock, Amount Converted		$ 11,400,000
Preferred Stock, Convertible, Conversion Price (in dollars per share)		$ 2.1
Subsequent Event [Member] | Conversion of Series A Preferred Stock into Common Stock [Member] | H S C P M [Member]
Conversion of Stock, Shares Converted (in shares)		5,602.09
Conversion of Stock, Shares Issued (in shares)		2,667,664
Subsequent Event [Member] | Conversion of Series A Preferred Stock into Common Stock [Member] | H S C P [Member]
Conversion of Stock, Shares Converted (in shares)		2,397.91
Conversion of Stock, Shares Issued (in shares)		1,141,860
Subsequent Event [Member] | Conversion of Series A Preferred Stock into Common Stock [Member] | Trinad Capital [Member]
Conversion of Stock, Shares Converted (in shares)		3,395.09
Conversion of Stock, Shares Issued (in shares)		1,616,709
Series A Preferred Stock [Member]
Preferred Stock, Convertible, Conversion Price (in dollars per share)				$ 2.1
Series A Preferred Stock [Member] | Subsequent Event [Member]
Preferred Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.001
Preferred Stock, Stated Value Per Share (in dollars per share)		$ 1,000
Forecast [Member]
Treasury Stock, Shares, Acquired (in shares)			402,593
Shares Acquired, Average Cost Per Share (in dollars per share)			$ 1.86