Note 2 - Revenue - Revenue by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues	$ 219,024	$ 179,465	$ 165,835
Geographic Concentration Risk [Member] \| Revenue Benchmark [Member]
Revenues	$ 219,024	$ 179,465	$ 165,835
Concentration risk	100.00%	100.00%	100.00%
Geographic Concentration Risk [Member] \| Revenue Benchmark [Member] \| UNITED STATES
Revenues	$ 104,764	$ 74,341	$ 92,798
Concentration risk	48.00%	41.00%	56.00%
Geographic Concentration Risk [Member] \| Revenue Benchmark [Member] \| JAPAN
Revenues	$ 39,287	$ 37,427	$ 10,465
Concentration risk	18.00%	21.00%	6.00%
Geographic Concentration Risk [Member] \| Revenue Benchmark [Member] \| CHINA
Revenues	$ 33,941	$ 22,102	$ 26,488
Concentration risk	15.00%	12.00%	16.00%
Geographic Concentration Risk [Member] \| Revenue Benchmark [Member] \| Other Geographical Areas [Member]
Revenues	$ 41,032	$ 45,595	$ 36,084
Concentration risk	19.00%	26.00%	22.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

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+ Details