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Unaudited Condensed Consolidated Balance Sheets (Parentheticals) - $ / shares	Jun. 30, 2022	Dec. 31, 2021
Common stock, par value (in dollars per share)	$ 0.03	$ 0.03
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	7,279,939	7,294,541
Common stock, shares outstanding (in shares)	7,279,939	7,294,541

X

- Definition

Face amount or stated value per share of common stock.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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X

- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

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-Topic 210
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X

- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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