5. Property and Equipment (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Property and equipment, gross	$ 3,936,821	$ 3,672,580
Accumulated depreciation	(2,990,463)	(2,636,267)
Property and equipment, net	946,358	1,036,313
Computers, Software and Office Equipment [Member]
Property and equipment, gross	2,118,169	1,937,987
Accumulated depreciation	(1,766,484)	(1,508,104)
Property and equipment, net	351,685	429,883
Construction in Progress [Member]
Property and equipment, gross	38,648	0
Accumulated depreciation	0	0
Property and equipment, net	38,648	0
Machinery and Equipment [Member]
Property and equipment, gross	172,192	167,731
Accumulated depreciation	(117,937)	(99,900)
Property and equipment, net	54,255	67,831
Vehicles [Member]
Property and equipment, gross	156,771	153,927
Accumulated depreciation	(72,404)	(120,728)
Property and equipment, net	84,367	33,199
Furniture and Fixtures [Member]
Property and equipment, gross	391,916	381,248
Accumulated depreciation	(311,266)	(284,410)
Property and equipment, net	80,650	96,838
Leasehold Improvements [Member]
Property and equipment, gross	1,059,125	1,031,687
Accumulated depreciation	(722,372)	(623,125)
Property and equipment, net	$ 336,753	$ 408,562

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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