PROPERTY AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2015

Property And Equipment Tables

PROPERTY AND EQUIPMENT

The principal categories and estimated useful lives of property and equipment were:

	2015		2014		Estimated Useful Lives
Computer equipment	$	306,681	$	334,865		3
Office and laboratory equipment		688,804		740,177		3-5
Furniture and fixtures		466,454		755,444		7
Manufacturing equipment		97,986		111,980		5
Leasehold improvements		10,815		825,589		3 - 7
Total property and equipment		1,570,740		2,768,055
Less accumulated depreciation and amortization		1,127,294		1,629,462
Property and equipment, net	$	443,446	$	1,138,593