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Note 12 - Geographic Information and Major Customer and Product Data - Revenues Based On Customer Location (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues	$ 122,706	$ 100,326	$ 87,152
UNITED STATES
Revenues	26,718	20,813	16,627
Europe and Middle East [Member]
Revenues	6,876	11,966	21,493
Asia Pacific [Member]
Revenues	89,102	67,547	49,032
Other Geographic Regions [Member]
Revenues	10	0	0
CHINA
Revenues	$ 67,491	$ 51,726	33,233
GERMANY
Revenues			$ 16,100

X

- Definition

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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