4. Property and Equipment |
6 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property, Plant and Equipment [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Property and Equipment |
At June 30, 2017 and December 31, 2016, property and equipment consists of the following:
Depreciation expense for the six-month periods ended June 30, 2017 and 2016 was $4,000 for each period. Depreciation expense for the three-month periods ended June 30, 2017 and 2016 was $2,000 for each period. |