Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2013
	(in thousands)
Balance at beginning of year	$	248
Settlement adjustments for tax provisions of prior years		(220	)
Expiration of statutes of limitations		(28	)
Balance at end of year	$	-

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

	2014			2013
	(in thousands)
Federal income tax expense (benefit) at statutory rate	$	6,172		$	(1,061	)
Adjusted for:
Valuation allowance		(6,170	)		1,034
Permanent differences and other		(2	)		27
Income tax benefit - continuing operations	$	-		$	-

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

	2014			2013
	(in thousands)
Net operating loss and tax credit carryforwards	$	50,361		$	46,205
Joint venture and other investments		238			294
Accrued retirement benefits		2,550			7,458
Property net book value		2,715			2,825
Deferred revenue		1,160			1,522
Stock compensation		154			150
Reserves and other		447			671
Total deferred tax assets		57,625			59,125
Valuation allowance		(57,625	)		(59,125	)
Net deferred tax assets	$	-		$	-