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Note 4 - Share Repurchase Program (Details Textual) - USD ($) $ in Thousands	3 Months Ended	5 Months Ended
	Mar. 31, 2019	Mar. 31, 2019	Nov. 01, 2018
Treasury Stock, Shares, Acquired	267,300	372,974
Treasury Stock, Value, Acquired, Cost Method	$ 1,957	$ 2,699
Maximum [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			2,500,000

X

- Definition

The number of 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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X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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-Section S99
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-Paragraph 1
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