4. Property and Equipment |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment |
At September 30, 2018 and December 31, 2017, property and equipment consist of the following:
Depreciation expense for the nine-month periods ended September 30, 2018 and 2017 was $21,000 and $11,000, respectively. Depreciation expense for the three-month periods ended September 30, 2018 and 2017 was $4,000 and $6,000, respectively. |