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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2022	Dec. 31, 2021
SHAREHOLDERS' EQUITY:
Preferred shares, no par value (in dollars per share)	$ 0	$ 0
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, Shares Outstanding	0	0
Common shares, no par value (in dollars per share)	$ 0	$ 0
Common Stock, Shares Authorized	19,000,000	19,000,000
Common Stock, Shares, Issued	14,252,027	14,213,792
Treasury Stock, Shares	2,850,524	1,798,836
Common stock, shares, outstanding (in shares)	11,401,503	12,414,956

X

- Definition

Face amount per share of no-par value common stock.

+ References

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X

- Definition

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

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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.

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

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X

- Definition

Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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