Property and equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property and equipment at December 31, 2012 and 2011 consisted of the following:

	Estimated Useful Life (in Years)	2012		2011
Machinery and equipment	5 - 7 years	$	478,290	$	355,985
Furniture and fixtures	5 years		54,058		48,157
Computer software	3 - 5 years		56,935		46,355
Leasehold improvements	*		326,366		245,441
			915,649		695,938
Less - accumulated depreciation and amortization			(480,037)		(310,159)
Net property, plant and equipment		$	435,612	$	385,779

* Lesser of estimated useful life of asset or lease term