Business Segments (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Additions to property, plant and equipment:
Property, Plant and Equipment, Additions	$ 2,315	$ 2,834	$ 2,734
Depreciation and amortization:
Depreciation and amortization	9,482	7,921	6,974
Workforce Excellence [Member]
Additions to property, plant and equipment:
Property, Plant and Equipment, Additions	1,657	1,321	1,609
Depreciation and amortization:
Depreciation and amortization	3,865	3,664	2,643
Business Transformation Services [Member]
Additions to property, plant and equipment:
Property, Plant and Equipment, Additions	395	625	184
Depreciation and amortization:
Depreciation and amortization	3,641	2,827	2,770
Corporate and Other [Member]
Additions to property, plant and equipment:
Property, Plant and Equipment, Additions	263	888	941
Depreciation and amortization:
Depreciation and amortization	$ 1,976	$ 1,430	$ 1,561