4. Property and Equipment |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment |
At March 31, 2021 and December 31, 2020, property and equipment consisted of the following:
Depreciation expense for the three-month periods ended March 31, 2021 and 2020 was $1,000 and $2,000, respectively. |