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Note 11 - Equity (Details Textual) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 26, 2020	Feb. 10, 2020
Stock Repurchase Program, Authorized Amount				$ 20,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 2,500
Stock Repurchased During Period, Shares (in shares)	1,400	0
Stock Repurchased During Period, Value	$ 17,515

X

- Definition

Amount of stock repurchase plan authorized.

+ References

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

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X

- Definition

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

+ References

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-Name Accounting Standards Codification
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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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