Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2025 USD ($)	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Revenue from Contract with Customer, Excluding Assessed Tax	$ 803	$ 661	$ 491	$ 498	$ 653	$ 650	$ 531	$ 392	$ 2,453	$ 2,226
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member]
Number of Customers	3				3				3	3
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Largest Customer [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 453	$ 310
Concentration Risk, Percentage									18.50%	13.90%
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Second Largest Customer [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 394	$ 261
Concentration Risk, Percentage									16.10%	11.70%
Customer Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] | Third Largest Customer [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 253	$ 219
Concentration Risk, Percentage									10.30%	9.80%
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Number of Customers	2				2				2	2
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two largest Customers [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 219	$ 229
Concentration Risk, Percentage									35.10%	42.00%
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	10 years								10 years
Other Capitalized Property Plant and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years								3 years
Other Capitalized Property Plant and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years								10 years