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Future amount receivable if we create and maintain specified levels of employment in the specified location through various dates ending in 2023.

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Represents the amount of deferred grant proceeds.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Note 2 - Summary of Significant Accounting Policies (Details Textual) € in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2022 EUR (€)	Mar. 31, 2022 USD ($)	May 31, 2018 USD ($)
Restricted Cash, Total	$ 1,142	$ 0
Accounts Receivable, Allowance for Credit Loss, Recovery	470
Accounts Receivable, Credit Loss Expense (Reversal)	$ 286	$ 0
Number of Operating Segments	3	2
Inventory Write-down	$ 771	$ 203
Depreciation, Total	809	666
Deferred Grant Proceeds	208
Foreign Currency Transaction Gain (Loss), before Tax, Total	(109)	$ (34)
City of Rochester and State of New York [Member]
Contingent Liability, Repayment of State and Local Grant Funds Received				$ 87	$ 550
Covenant, Future Amount Receivable	$ 285
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	1 year
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	10 years
Bank Guarantee on Customer Order Deposit [Member]
Restricted Cash, Total	$ 1,142		€ 1,160