5. Property and Equipment (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Property and equipment, gross	$ 3,877,215	$ 3,672,580
Accumulated depreciation	(2,901,967)	(2,636,267)
Property and equipment, net	975,248	1,036,313
Computers, Software and Office Equipment [Member]
Property and equipment, gross	2,079,612	1,937,987
Accumulated depreciation	(1,713,418)	(1,508,104)
Property and equipment, net	366,194	429,883
Machinery and Equipment [Member]
Property and equipment, gross	173,976	167,731
Accumulated depreciation	(114,224)	(99,900)
Property and equipment, net	59,752	67,831
Vehicles [Member]
Property and equipment, gross	157,810	153,927
Accumulated depreciation	(64,435)	(120,728)
Property and equipment, net	93,375	33,199
Furniture and Fixtures [Member]
Property and equipment, gross	395,716	381,248
Accumulated depreciation	(307,740)	(284,410)
Property and equipment, net	87,976	96,838
Leasehold Improvements [Member]
Property and equipment, gross	1,070,101	1,031,687
Accumulated depreciation	(702,150)	(623,125)
Property and equipment, net	$ 367,951	$ 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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