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Accounting Policies Capitalized Software Development Amortization Expense (Tables)
12 Months Ended
Dec. 31, 2017
Software and Software Development Costs [Member]  
Software Development, Schedule of Expected Amortization Expense [Table Text Block]
As of December 31, 2017 the estimated amortization expense for the next five years of capitalized software development costs is as follows:

2018
2,197

2019
1,878

2020
1,620

2021
1,327

2022
716

Total
$
7,738