Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Schedule Of Net Deferred Tax Assets [Table Text Block]

The components of the deferred tax assets and the valuation allowance are shown below. The state carryforwards are shown net of federal tax.

	December 31,
	2012			2011
Deferred tax assets:
Net operating loss carryforward - Federal	$	65,898,904		$	56,534,714
Net operating loss carryforward - State		8,915,734			7,648,814
Licensing costs		1,213,928			1,105,848
Compensation costs and deferred stock compensation		1,747,524			1,271,272
Inventory purchases prior to commercialization		2,671,034			2,228,108
Other temporary differences		(161,377	)		(269,087	)
		80,285,747			68,519,669
Less valuation allowance		(80,285,747	)		(68,519,669	)
	$	-		$	-

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

The reasons for the difference between actual income tax benefit and the amount computed by applying the statutory federal income tax rate to the losses before income tax benefit are as follows:

	December 31,
Rate reconciliation:	2012			2011
Statutory federal rate		-34.00	%		-34.00	%
State income tax rate (net of federal benefit)		-4.60	%		-4.60	%
Certain non-deductible expenses		1.59	%		1.47	%
Effect of increase in valuation allowance		37.01	%		37.13	%
Effective tax rate		0.00	%		0.00	%