Note 6 - Treasury Stock (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Treasury Stock, Shares, Total (in shares)	976,006	963,509
Treasury Stock, Value, Total	$ 2,251	$ 2,234

The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
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-URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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