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Note 13 - Subsequesnt Events (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	1 Months Ended
	Jul. 31, 2013
Subsequent Event [Member]
Note 13 - Subsequesnt Events (Details) [Line Items]
Stock Repurchase Program, Authorized Amount	$ 3

X

- Details

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X

- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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