Disclosure of Changes in Number of Shares	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Treasury stock - at cost, shares	(170,247)us-gaap_TreasuryStockShares
Common Stock - Outstanding	103,486,927us-gaap_CommonStockSharesOutstanding
Common Stock Member
Beginning balance	103,614,553	103,435,967
Issuance of stock	42,621	58,463
Ending balance	103,657,174	103,494,430
Treasury stock - at cost, shares	(170,247)	(38,895)
Common Stock - Outstanding	103,486,927	103,455,535
Preferred Stock Member
Ending balance	2,006,391	2,006,391

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 505

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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