19. Income taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Taxes Tables

Deferred tax assets

	December 31, 2012
Net operating loss carryforward	$	18,050,294
Amortization		(580,145	)
Stock option compensation		904,334
Deferred compensation		883,794
Deferred state tax		(477,307	)
Other		449,209
Valuation allowance		(19,230,179	)
Net deferred tax asset	$	–

Net operating loss carry-forwards

The Company had net operating loss carry-forwards (“NOL”) for federal and state income tax purposes of approximately:

	December 31,
	2012		2011
Combined NOL Carryforwards:
Federal	$	43,181,944	$	35,361,835
California		40,714,060		32,893,951

Reconciliation of the income tax credit computed at the federal statutory rate

	December 31, 2012						December 31, 2011
Rate reconciliation:
Federal credit at statutory rate	$	(4,846,180	)	$	166.75%		$	(5,415,468	)	$	258.71%
State tax, net of Federal benefit		(782,767	)		26.93%			(926,363	)		44.25%
Change in valuation allowance		5,495,845			(189.11%	)		6,338,928			(302.82%	)
Other		133,102			(4.58%	)		2,903			(0.14%	)
Total provision	$	–			–%		$	–		$	–%