Note 14 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended December 31,
	2013			2012			2011
	(Dollars in thousands)
Current tax benefit:
Federal	$	2,611		$	(374	)	$	(3,652	)
State		-			(1,210	)		(5,430	)
Total Current		2,611			(1,584	)		(9,082	)
Deferred expense
Federal	$	(171,037	)	$	-		$	-
State		(16,134	)		-			-
Total deferred		(187,171	)		-			-
Benefit from income taxes		(184,560	)		(1,584	)		(9,082	)

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

	Year Ended December 31,
	2013			2012			2011
	(Dollars in thousands)
Tax expense (benefit) computed at federal statutory rate	$	45,439		$	21,390		$	(37,615	)
State income tax expense (benefit), net of federal benefit		4,544			2,139			(3,762	)
Permanent differences		(358	)		1,771			93
Expiration of state net operating loss		3,874			2,634			-
Liability for unrecognized tax benefits		(552	)		(1,857	)		(9,173	)
Write-off of deferred tax asset for deferred compensation retirement plans		11,856			-			-
Federal Energy Credits		(6,530	)		-			-
Change in valuation allowance		(242,833	)		(27,661	)		41,375
Benefit from income taxes	$	(184,560	)	$	(1,584	)	$	(9,082	)
Effective tax (benefit) rate		-142.2	%		-2.6	%		-8.5	%

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

	December 31,
	2013			2012
	(Dollars in thousands)
Deferred tax assets:
Federal net operating loss carryforwards	$	72,915		$	129,695
State net operating loss carryforwards		40,227			49,551
Alternative minimum tax and other tax credit carryforwards		24,196			10,988
Stock-based compensation expense		26,651			29,196
Warranty, litigation and other reserves		15,543			14,556
Deferred compensation retirement plans		-			11,252
Accrued compensation		11,136			-
Asset impairment charges		5,889			14,080
Inventory, additional costs capitalized for tax purposes		7,064			3,930
Other, net		3,446			2,063
Total deferred tax assets		207,067			265,311
Valuation allowance		(8,201	)		(248,306	)
Total deferred tax assets, net of valuation allowance		198,866			17,005
Deferred tax liabilities:
Property, equipment and other assets		5,512			5,753
Discount on notes receivable		4,204			4,204
Deferred revenue		3,985			3,796
Unrealized gain on marketable securities		7,368			1,863
Other, net		1,535			1,389
Total deferred tax liabilities		22,604			17,005
Net deferred tax asset	$	176,262		$	-

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

	Year Ended December 31,
	2013			2012			2011
	(Dollars in thousands)
Gross unrecognized tax benefits at beginning of year	$	575		$	2,712		$	48,963
Increases related to prior year tax positions		124			63			-
Decreases related to prior year tax positions		(53	)		(84	)		(286	)
Increases related to current year tax positions		-			-			85
Decreases related to current year tax positions		-			-			-
Settlements with taxing authorities		-			-			(38,543	)
Lapse of applicable statute of limitations		(275	)		(2,116	)		(7,507	)
Gross unrecognized tax benefits at end of year	$	371		$	575		$	2,712