4. Property and Equipment |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2019 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment |
At September 30, 2019 and December 31, 2018, property and equipment consists of the following:
Depreciation expense for the nine-month periods ended September 30, 2019 and 2018 was $5,000 and $21,000, respectively. Depreciation expense for the three-month periods ended September 30, 2019 and 2018 was $2,000 and $4,000, respectively. |