Note 10 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	2 Months Ended	3 Months Ended
	Sep. 12, 2024	Jul. 25, 2024	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023
Stock Issued During Period, Value, New Issues					$ 585	$ 5,395	$ 165	$ 136
Share Purchase Agreement [Member] | New Circle Principal Investments LLC [Member]
Equity Offering, Maximum Amount		$ 50,000
Equity Offering, Exchange Cap, Shares (in shares)		1,721,755
Equity Offering, Exchange Cap, Minimum Average Price Per Share (in dollars per share)		$ 1.41
Equity Offering, Period (Month)		36 months
Equity Offering, Maximum Beneficial Ownership, Percentage		4.99%
Equity Offering, Purchase Price, Percentage of Volume Weighted Average Price for One Day or Intraday Trading Period		96.50%
Equity Offering, Purchase Price, Percentage of Volume Weighted Average Price for Three Consecutive Day Trading Period		97.50%
Equity Offering, Maximum Shares, Percentage of Average Daily Trading Volume		100.00%
Equity Offering, Maximum Shares Per Day (in shares)		400,000
Stock Issued During Period, Shares, New Issues (in shares)		225,563		150
Stock Issued During Period, Value, New Issues		$ 282
At Market Issuance Sales Agreement (the “ATM”) [Member] | Alliance Global Partners (“A.G.P.”) [Member]
Equity Offering, Maximum Amount	$ 2,600
Equity Offering, Period (Month)	36 months
Stock Issued During Period, Shares, New Issues (in shares)			10,000
Equity Offering, Cash Commission, Percentage of Gross Proceeds	3.00%