Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	2016			2015
	(in thousands)
Federal income tax expense (benefit) at statutory rate	$	7,635		$	2,385
Adjusted for:
Valuation allowance		(7,603	)		(2,390	)
Permanent differences and other		(32	)		5
Income tax benefit - continuing operations	$	-		$	-

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

	2016			2015
	(in thousands)
Net operating loss and tax credit carryforwards	$	38,915		$	47,640
Joint venture and other investments		18			183
Accrued retirement benefits		3,924			3,608
Property net book value		2,801			3,275
Deferred revenue		953			1,101
Stock compensation		22			22
Reserves and other		404			408
Total deferred tax assets		47,037			56,237
Valuation allowance		(47,037	)		(56,237	)
Net deferred tax assets	$	-		$	-