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Note 5 - Stockholders' Equity (Details) - Dividends Paid - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Dividends Paid [Abstract]
Dividend amount per share	$ 0.20	$ 0.16	$ 0.36	$ 0.29
Total amount of dividend (in thousands)	$ 5,266	$ 4,179	$ 9,482	$ 7,557

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- References

No definition available.

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- Definition

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

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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