Accrued Expenses (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Accrued payroll and employee benefits	$ 570,405	$ 979,686
Accrued hair collection expense	113,355	35,676
Accrued audit and tax consulting	110,491	106,945
Accrued payable for equipment purchases	497,696	0
Other accrued expenses	121,594	199,549
Total Accrued Expenses	$ 1,413,541	$ 1,321,856