Note 8 - Stockholders' Equity (Deficit) (Details Textual)		3 Months Ended
	Jun. 10, 2024 USD ($) $ / shares shares	Mar. 31, 2025 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) shares	Dec. 31, 2024 shares	Dec. 31, 2023 shares	Jun. 08, 2023 USD ($)
Class of Stock [Line Items]
Preferred Stock, Shares Authorized (in shares)		15,000,000		15,000,000
Common Stock, Shares, Outstanding (in shares)		12,539,482		12,228,479
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)		439,210
Class of Warrant or Right, Outstanding (in shares)		726,375	501,000
Preferred Stock, Shares Issued (in shares)		0
Common Stock, Shares Authorized (in shares)		45,000,000		45,000,000
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues (in shares)		76,703	11,022
Underwritten Public Offering [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues (in shares)	731,750
Warrant exercise price | $ / shares	$ 26
Warrants exercisable term	36 months
Shares Issued, Price Per Share (in dollars per share) | $ / shares	$ 20.5	$ 19.37
Underwriting Agreement, Discount Percentage		5.50%
Proceeds from Issuance of Common Stock, Net | $	$ 13,700,000
Underwritten Public Offering [Member] | Measurement Input, Risk Free Interest Rate [Member] | Fair Value, Inputs, Level 2 [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	4.57
Underwritten Public Offering [Member] | Measurement Input, Expected Term [Member] | Fair Value, Inputs, Level 2 [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	3
Underwritten Public Offering [Member] | Measurement Input, Price Volatility [Member] | Fair Value, Inputs, Level 2 [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	57
Underwritten Public Offering [Member] | Measurement Input, Expected Dividend Rate [Member] | Fair Value, Inputs, Level 2 [Member]
Class of Stock [Line Items]
Warrants and Rights Outstanding, Measurement Input	0
Sales Agreement [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues (in shares)			11,022
Proceeds from Issuance of Common Stock, Net | $		$ 800,000	$ 200,000
Sales Agreement [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues (in shares)		76,703
Balance remaining from sales agreement | $		$ 32,000,000
Sales Agreement [Member] | Cantor Fitzgerald & Co. [Member]
Class of Stock [Line Items]
Offering Agreement, Maximum Aggregate Common Shares May be Offered | $						$ 40,000,000
Commission Fee, Percentage of Gross Proceeds of Shares Sold, Maximum						2.75%
Restricted Stock [Member]
Class of Stock [Line Items]
Common Stock, Shares, Outstanding (in shares)		12,539,482
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares)		439,210	439,210	436,863	433,528