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Note 8 - Income Taxes - Net Operating Loss Carryforwards (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards	$ 3,783	$ 4,116
Operating Loss Carryforward Expiring in 2021 [Member]
Operating Loss Carryforwards	689	689
Operating Loss Carryforward Expiring in 2022 [Member]
Operating Loss Carryforwards	849	849
Operating Loss Carryforward Expiring in 2034 [Member]
Operating Loss Carryforwards	$ 2,245	$ 2,578

X

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

+ Details

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