Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

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

	2013			2012			2011
Federal statutory rate		34.0	%		34.0	%		34.0	%
State taxes, net of federal tax benefit		5.9			5.9			4.6
Recapture of alternative minimum tax	–			–			–
Valuation allowance		(39.9	)		(39.9	)		(38.6	)
Effective tax rate		–	%		–	%		–	%

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

	December 31,
In thousands	2013			2012
Net operating loss carry forwards	$	53,423		$	49,274
Compensation expense related to employee stock options		3,310			2,817
Subtotal		56,733			52,091
Valuation allowance		(56,733	)		(52,091	)
Total deferred tax asset	$	-		$	-

Summary of Operating Loss Carryforwards [Table Text Block]

Approximate Amount Of Unused Operating Loss Carry Forwards (in $000s)		Expiration During Year Ended
$	4,843		2022
	2,293		2023
	15,647		2024
	8,168		2025
	7,361		2026
	11,905		2028
	18,547		2029
	18,145		2030
	21,386		2031
	20,558		2032
	10,397		2033
$	139,250