Statement of Stockholders' Equity (Parentheticals) (USD $)	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
Condensed Statement of Stockholders' Equity (Paratheticals)
Cash dividends paid per share	$ 0.400	$ 0.390
Sales of Treasury Stock	20.00	60.00
Treasury Stock, acquired shares	0	484.00

Aggregate dividends paid during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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Number of treasury shares reissued during the period. Upon reissuance, these are common and preferred shares outstanding.

+ References

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5

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