Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]: New Accounting Pronouncements, Policy [Policy Text Block] (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 31, 2018
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (413)
Accounting Standards Update 2014-09 | Other Assets
Contract with Customer, Asset, Net		$ 552
Accounting Standards Update 2014-09 | Accounts Payable and Accrued Liabilities
Contract with Customer, Liability		1,094
Retained Earnings
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 34
Retained Earnings | Accounting Standards Update 2016-01
Cumulative Effect of New Accounting Principle in Period of Adoption		340
Retained Earnings | Accounting Standards Update 2014-09
Cumulative Effect of New Accounting Principle in Period of Adoption		$ (306)