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Note 9 - Goodwill	3 Months Ended
	Mar. 31, 2020
Notes to Financial Statements
Goodwill Disclosure [Text Block]	9. Goodwill As a result of the acquisition of ISSB in 2019, goodwill of $2.7 million was recognized. Goodwill recognized in the Acquisition was primarily attributable to an expanded market share and economies of scale expected from combining the operations of ISSB. For income tax purposes, goodwill associated with ISSB is amortized over a fifteen year period. Goodwill for this acquisition and previous acquisitions is not amortized but is evaluated for impairment at least annually.

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- Definition

The entire disclosure for goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=2144439

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