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Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

		2017				2016
		(in thousands)
Federal income tax expense at statutory rate		$	3,815			$	7,635
Adjusted for:
Valuation allowance			(3,814	)			(7,603	)
Permanent differences and other			(1	)			(32	)
Income tax benefit - continuing operations		$	-			$	-

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		2017				2016
		(in thousands)
Net operating loss and tax credit carryforwards		$	25,745			$	38,915
Joint venture and other investments			(22	)			18
Accrued retirement benefits			2,483				3,924
Property net book value			1,716				2,801
Deferred revenue			546				953
Stock compensation			13				22
Reserves and other			(115	)			404
Total deferred tax assets			30,366				47,037
Valuation allowance			(30,366	)			(47,037	)
Net deferred tax assets		$	-			$	-

X

- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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