XML 70 R56.htm IDEA: XBRL DOCUMENT v3.3.1.900

Note 7 - Capital Stock (Details Textual) - USD ($)	1 Months Ended				12 Months Ended
	Feb. 29, 2016	May. 31, 2015	Nov. 30, 2014	Nov. 30, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2015	May. 31, 2014
September 2011 Authorization [Member]
Treasury Stock, Shares, Acquired						37,850	50,325	0	224,000
The 2016 Tender Offer [Member] | Subsequent Event [Member] | Minimum [Member]
Treasury Stock Acquired Cost Per Share	$ 27
The 2016 Tender Offer [Member] | Subsequent Event [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share	$ 30
The 2016 Tender Offer [Member] | Subsequent Event [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	325,000
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent	2.00%
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares	142,413
The 2015 Tender Offer [Member] | Minimum [Member]
Treasury Stock Acquired Cost Per Share		$ 59
The 2015 Tender Offer [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share		$ 63
The 2015 Tender Offer [Member]
Treasury Stock, Shares, Acquired		298,566
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		80,000								150,000
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent		2.00%
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares		148,566
Treasury Stock Acquired Cost Per Share		$ 59
Treasury Stock, Value, Acquired, Cost Method		$ 17,800,000
The 2014 Tender Offer [Member] | Minimum [Member]
Treasury Stock Acquired Cost Per Share			$ 46
The 2014 Tender Offer [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share			$ 50
The 2014 Tender Offer [Member]
Treasury Stock, Shares, Acquired			571,865
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			640,000
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent			2.00%
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares			160,000
Treasury Stock Acquired Cost Per Share			$ 50
Treasury Stock, Value, Acquired, Cost Method			$ 28,700,000
The 2013 Tender Offer [Member] | Minimum [Member]
Treasury Stock Acquired Cost Per Share				$ 19
The 2013 Tender Offer [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share				$ 21
The 2013 Tender Offer [Member]
Treasury Stock, Shares, Acquired				675,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased				600,000
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent				2.00%
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares				173,000
Treasury Stock Acquired Cost Per Share				$ 20.50
Treasury Stock, Value, Acquired, Cost Method				$ 13,900,000
September 2011 Reauthorization [Member]
Treasury Stock, Shares, Acquired					31,263	33,341
Stock Repurchase Program, Number of Shares Authorized to be Repurchased											500,000
Preferred Stock, Shares Issued					0	0
Common Stock, Shares Authorized					40,000,000	40,000,000
Common Stock, Par or Stated Value Per Share					$ 0.01	$ 0.01
Preferred Stock, Shares Authorized					10,000,000	10,000,000
Preferred Stock, Par or Stated Value Per Share					$ 0.01	$ 0.01
Common Stock, Shares, Issued					11,497,471	11,474,096
Common Stock, Shares, Outstanding					7,116,661	7,423,115
Treasury Stock, Value, Acquired, Cost Method					$ 19,278,000	$ 30,810,000	$ 14,452,000
Treasury Stock, Shares					4,380,810	4,050,981
Treasury Stock, Value					$ 101,779,000	$ 82,501,000

X

- Definition

The amount additional shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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Face amount or stated value per share of common stock.

+ References

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-SubTopic 10
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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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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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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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