Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes [Abstract]

Reconciliation Of Income Tax Provision At Statutory Rate

	2012			2011
U.S. federal statutory rate		35.00	%		35.00	%
State & local taxes		5.36	%		(0.06	)%
Tax on foreign operations		(0.78	)%		(1.27	)%
State research and development credits		1.06	%		1.11	%
Other		(2.29	)%		(3.07	)%
Valuation allowance		(38.35	)%		(31.71	)%
Effective tax rate		-			-

Significant Components Of Deferred Tax Assets

	2012			2011
Deferred tax assets:
Net operating loss carry forwards	$	25,721,000		$	24,714,000
Research and development credits		1,054,000			1,019,000
Nonqualified stock option compensation expense		1,701,000			1,586,000
Other temporary book - tax differences		441,000			331,000
Total deferred tax assets		28,917,000			27,650,000
Valuation allowance for deferred tax assets		(28,917,000	)		(27,650,000	)
Net deferred tax assets	$	-		$	-