Note 16 - Subsequent Events (Details Textual) - USD ($)								1 Months Ended	12 Months Ended
	Mar. 06, 2025	Feb. 25, 2025	Dec. 05, 2024	Mar. 13, 2024	Mar. 21, 2023	Sep. 14, 2022	Feb. 09, 2022	Mar. 21, 2025	Dec. 29, 2024	Dec. 31, 2023	Jan. 01, 2023	Dec. 27, 2024
Common Stock, Par or Stated Value Per Share (in dollars per share)									$ 0.001	$ 0.001
Proceeds from Issuance of Common Stock									$ 6,810,000	$ 2,313,000	$ 4,682,000
Share Price (in dollars per share)												$ 9.86
Registered Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)			424,000	223,000	450,000	487,000	310,000
Proceeds from Issuance of Common Stock			$ 3,200,000	$ 3,500,000	$ 2,300,000	$ 3,200,000	$ 1,500,000		$ 6,800,000
Subsequent Event [Member] | ATM Offering [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.001
Equity Issuable, Aggregate Maximum Offering, Amount		$ 20,000,000
Subsequent Event [Member] | Registered Direct Offering [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.001
Stock Issued During Period, Shares, New Issues (in shares)	256,200							182,000
Proceeds from Issuance of Common Stock	$ 1,500,000
Share Price (in dollars per share)	$ 5.93