Note 4 - Summary of Significant Accounting Policies (Details Textual) $ / shares in Units, $ in Thousands			3 Months Ended
	Mar. 07, 2025 USD ($) shares	Sep. 30, 2024 $ / shares shares	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2025 USD ($) $ / shares shares		Dec. 31, 2024 USD ($) $ / shares shares		Sep. 29, 2024 shares
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares		$ 0.001			$ 0.001		$ 0.001
Common Stock, Shares Authorized (in shares) | shares		12,500,000			12,500,000		12,500,000		50,000,000
Stock Issued During Period, Fractional Shares, Reverse Stock Splits (in shares) | shares		0
Common Stock, Shares, Issued (in shares) | shares		2,301,205			2,659,629		2,301,205		8,704,506
Contract with Customer, Performance Obligation Satisfied in Previous Period | $			$ 0	$ 0
Operating Lease, Right-of-Use Asset | $			70		$ 70		$ 0
Operating Lease, Liability, Current | $			$ 70		$ 47	[1]	$ 0	[1]
Rahula Group Acquisition [Member]
Investment Owned, Shares Acquired During Period | shares	10,000
Asset Acquisition, Consideration Transferred | $	$ 600
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year)	3 years
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio		4

[1] Liabilities recognized as a result of consolidating these VIEs do not represent additional claims on the Company’s general assets (Note 2).