Property and Equipment

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Property and Equipment

Property and Equipment

The gross carrying amount and accumulated depreciation of property and equipment as of September 30, 2017 and December 31, 2016 are as follows:

	September 30, 2017			December 31, 2016
Property and Equipment:
Gross carrying amount	$	19,233,492		$	19,755,489
Accumulated depreciation	(18,479,643		)	(18,580,547		)
Property and Equipment, net	$	753,849		$	1,174,942

For the three months ended September 30, 2017 and 2016, depreciation expense was $107,812 and $154,948, respectively. For the nine months ended September 30, 2017 and 2016, depreciation expense was $429,566 and $560,324, respectively.