Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Intangible Assets [Abstract]

Summary of intangible assets

	Cost		Accumulated Amortization		Net Book Value
June 30, 2017
Licenses	$	462,234	$	374,552	$	87,682
Patents		1,893,185		1,885,086		8,099
Total	$	2,355,419	$	2,259,638	$	95,781
December 31, 2016
Licenses	$	462,234	$	361,044	$	101,190
Patents		1,893,185		1,867,747		25,438
Total	$	2,355,419	$	2,228,791	$	126,628

Summary of future annual amortization expense

	Amortization Expense
July 1 thru December 31, 2017	$	30,953
2018	$	37,300
2019	$	27,528