XML 22 R11.htm IDEA: XBRL DOCUMENT v3.19.1
Property and Equipment
3 Months Ended
Mar. 31, 2019
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment

The gross carrying amount and accumulated depreciation of property and equipment as of March 31, 2019 and December 31, 2018 are as follows:
 
 
March 31, 2019
 
December 31, 2018
Gross carrying amount
 
$
18,598,093

 
$
18,628,762

Accumulated depreciation
 
(18,191,988
)
 
(18,194,827
)
Property and Equipment, net
 
$
406,105

 
$
433,935



For the three months ended March 31, 2019 and 2018, depreciation expense was $72,214 and $86,869, respectively.