Note 7 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

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

	December 31,
	2013			2012
Deferred tax assets:
Net operating losses	$	56,294		$	50,502
Fixed asset basis difference		6,559			7,141
Contributions carryover		2			2
Deferred compensation		2,354			2,367
Accrued liabilities		63			29
Total deferred tax assets		65,272			60,041
Valuation allowance for deferred tax assets		(65,272	)		(60,041	)
Net deferred tax asset	$	-		$	-

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

	Year Ended December 31,
	2013			2012			2011
Expected federal income tax benefit at 34%	$	(7,698	)	$	(6,614	)	$	(5,720	)
Loss with no tax benefit provided		7,108			5,535			4,880
State income tax		6			10			7
State tax benefit		-			(321	)		-
Stock Options		-			-			(6	)
Non-deductible expenses and other		590			1,079			846
Income tax (benefit) expense	$	6		$	(311	)	$	7