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Note 6 - Stock Option Plan (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

		Number of Shares				Weighted Average Grant Date Fair Value
Nonvested at January 1, 2018			10,500			$	24.50
Granted			20,000			$	37.42
Vested			-				-
Forfeited			-				-
Nonvested at March 31, 2018			30,500			$	32.97

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock units.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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X

- References

No definition available.

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Namespace Prefix:	us-gaap_
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