Goodwill and Identifiable Intangible Assets (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2013

Dec. 31, 2012

Schedule of Intangible Assets and Goodwill [Table Text Block]

These assets were a result of the Angel Business and Aldagen acquisitions. The carrying value of those intangible assets, and the associated amortization, were as follows: 

	March 31,			December 31,
	2013			2012
Trademarks	$	2,310,000		$	2,310,000
Technology		2,355,000			2,355,000
Customer relationships		708,000			708,000
In-process research and development		29,585,000			29,585,000
Total	$	34,958,000		$	34,958,000
Less accumulated amortization		(914,296	)		(822,713	)
	$	34,043,704		$	34,135,287

The carrying value of those intangible assets, and the associated amortization, were as follows:

	December 31, 2012			December 31, 2011
Trademarks	$	2,310,000		$	320,000
Technology		2,355,000			2,355,000
Customer relationships		708,000			708,000
In-process research and development		29,585,000			—
Total	$	34,958,000		$	3,383,000
Less accumulated amortization		(822,713	)		(466,958	)
	$	34,135,287		$	2,916,042

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Annual amortization expense based on our existing intangible assets and their estimated useful lives is expected to be approximately:

2014	366,500
2015	366,500
2016	366,500
2017	366,500
2018	366,500
Thereafter	2,718,600

Annual amortization expense based on our existing intangible assets and their estimated useful lives is expected to be approximately:

2013	366,500
2014	366,500
2015	366,500
2016	366,500
2017	366,500
Thereafter	2,718,600