Note 9 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Agreement Between the BIRD Foundation, the Company, and MARPE Technologies, LTD [Member]
Agreement, Conditional Grant	$ 1,000		$ 1,000
Agreement, Exclusive Manufacturing Rights, Term (Year)			10 years
Abilitech Medical, Inc [Member] \| Payments Received for Delivery of EMS Products [Member]
Related Party Transaction, Amounts of Transaction	$ 163	$ 472	$ 217	$ 740
David Kunin [Member] \| Marpe Technologies, LTD [Member] \| Maximum [Member]
Ownership, Percent	10.00%		10.00%
Marpe Technologies, LTD [Member] \| Agreement Between the BIRD Foundation, the Company, and MARPE Technologies, LTD [Member]
Agreement, Conditional Grant Matching Amount	$ 500		$ 500
Agreement, Contribution Amount	$ 182		182
Revenue from Related Parties			$ 113	$ 0

The amount of conditional grant under an agreement.

No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

The matching amount required for the conditional grant under an agreement.

+ References

No definition available.

+ Details

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- Definition

Contribution amount under an agreement.

+ References

No definition available.

+ Details

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- Definition

The term under an agreement for exclusive manufacturing rights.

+ References

No definition available.

+ Details

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- Definition

The percentage ownership interest in an entity.

+ References

No definition available.

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- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756

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-Topic 946
-SubTopic 220
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-Publisher FASB
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