Compensation and Employee Benefit Plans [Text Block]: Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 358	$ 316
Allocated Share-based Compensation Expense, Net of Tax	833	478
Selling, General and Administrative Expenses
Allocated Share-based Compensation Expense	1,191	794
Employee Stock Option | Selling, General and Administrative Expenses
Allocated Share-based Compensation Expense	754	224
Restricted Stock Units (RSUs) | Selling, General and Administrative Expenses
Allocated Share-based Compensation Expense	184	116
Stock Appreciation Rights (SARs) | Selling, General and Administrative Expenses
Allocated Share-based Compensation Expense	$ 253	$ 454