Note 5 - Treasury Stock	12 Months Ended
Dec. 31, 2021
Notes to Financial Statements
Treasury Stock [Text Block]	5. TREASURY STOCK Common stock held in treasury totaled 963,509 and 948,347 with a cost of $2,234 and $2,182 at December 31, 2021 and 2020, respectively. These shares were withheld from employees to settle personal tax withholding obligations that arose as a result of restricted stock units that vested during the periods presented.

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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