4. Property and Equipment, net |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment, net |
Property and equipment, net consists of the following:
Depreciation expense was approximately $6,000 and $8,000 for the three months ended March 31, 2018 and 2017, respectively. |