5. Property and Equipment, net |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2019 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment, net |
Property and equipment, net consists of the following:
Depreciation expense was approximately $1,000 and $5,000 for the three months ended June 30, 2019 and 2018, respectively, and approximately $2,000 and $11,000 for the six months ended June 30, 2019 and 2018, respectively. |