Accounting Policies Depreciation Calculation (Tables)
|12 Months Ended|
Dec. 31, 2017
|Property, Plant and Equipment [Abstract]|
|Property and Equipment [Table Text Block]||
Depreciation of property and equipment is calculated based upon the cost of the asset, reduced by its estimated salvage value, using the straight-line method over the estimated useful lives as follows:
Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.
Reference 1: http://www.xbrl.org/2003/role/presentationRef