Stockholders' Equity Note Disclosure [Text Block]: Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Gain (Loss) on Investments	$ (423)	$ 100	$ (352)	$ 272
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	9,494	3,928	18,548	11,475
Income Tax Expense (Benefit)	2,652	(10,379)	4,658	(7,841)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	6,842	14,307	13,890	19,316
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Investment Gain (Loss) Attributable to Parent
Gain (Loss) on Investments	(366)	146	(195)	343
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(366)	146	(195)	343
Income Tax Expense (Benefit)	(77)	76	(42)	125
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (289)	$ 70	$ (153)	$ 218