4. Property and Equipment, net |
9 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment, net |
Property and equipment, net consists of the following:
Depreciation expense was approximately $5,000 and $9,000 for the three months ended September 30, 2017 and 2016, respectively, and approximately $19,000 and $27,000 for the nine months ended September 30, 2017 and 2016, respectively. |