Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Property, plant and equipment, including those held under capital lease, are stated at cost. Depreciation is computed by use of the straight-line method over the estimated useful lives of the assets, or the lease term if shorter, as follows:


Building and improvements			3 - 20 years
Machinery and equipment			3 - 10 years
Furniture and fixtures			3 - 10 years

Basic and Dilutive Net Loss per Share Computations

The following are the basic and dilutive net loss per share computations for the last three fiscal years:


	2014			2013			2012
Net loss from continuing operations	$	(32,260,663	)	$	(25,986,692	)	$	(27,971,259	)
Net loss from discontinued operations		(480,611	)		(452,467	)		(519,894	)

Net loss	$	(32,741,274	)	$	(26,439,159	)	$	(28,491,153	)


Weighted average shares outstanding used to compute basic and diluted net loss per share		61,612,957			43,422,001			28,824,417

Basic and diluted net loss per share from continuing operations	$	(0.52	)	$	(0.60	)	$	(0.97	)
Basic and diluted net loss per share from discontinued operations	$	(0.01	)	$	(0.01	)	$	(0.02	)

Basic and diluted net loss per share	$	(0.53	)	$	(0.61	)	$	(0.99	)

Outstanding Options, Warrants and Restricted Stock Units

Outstanding options, warrants and restricted stock units were excluded from the computation of diluted net loss per share because the effect would have been anti-dilutive for all periods presented below:


	2014		2013		2012
Outstanding options		302,729		428,258		447,359
Restricted stock units		3,374,940		3,326,282		1,534,200
Outstanding warrants		23,478,181		16,267,659		9,935,912

Total		27,155,850		20,022,199		11,917,471

Summary of Components of Accumulated OCI

The components of our accumulated OCI, as of December 31 of each year shown, are as follows:


	2014		2013
Unrealized gain on foreign currency translation	$	65,390	$	252,101