Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Intangible Assets Tables

Intangible assets

	2016		2015		Remaining Weighted Average Amortization Period as of December 31, 2016
License agreements and other	$	1,469,000	$	1,249,000		5.4 years
Less accumulated depreciation		983,000		895,000
	$	486,000	$	354,000

Estimated aggregate amortization expense

Years ending December:
2017	$	94,000
2018		94,000
2019		94,000
2020		89,000
2021		70,000
Thereafter		45,000
	$	486,000