Note 8 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

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

	2012			2011			2010
Federal statutory rate		34.0	%		34.0	%		34.0	%
State taxes, net of federal tax benefit		5.9			4.6			5.4
Recapture of alternative minimum tax		–			–			–
Valuation allowance		(39.9	)		(38.6	)		(39.4	)
Effective tax rate		–	%		–	%		–	%

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

	December 31,
In thousands	2012			2011
Net operating loss carry forwards	$	49,408		$	40,104
Compensation expense related to employee stock options		2,817			2,285
Subtotal		52,225			42,389
Valuation allowance		(52,225	)		(42,389	)
Total deferred tax asset	$	-		$	-

Summary of Operating Loss Carryforwards [Table Text Block]

Approximate Amount Of Unused Operating Loss Carry Forwards ($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
	20,587		2032
$	128,882