Industry, Segment, and Geographic Financial Information - Selected Assets by Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total Assets	$ 126,281	$ 107,971
Segment Total
Segment Reporting Information [Line Items]
Total Assets	105,205	89,152
Corporate Assets
Segment Reporting Information [Line Items]
Total Assets	21,076	18,819
Lifeboat Distribution
Segment Reporting Information [Line Items]
Total Assets	99,602	77,610
TechXtend
Segment Reporting Information [Line Items]
Total Assets	$ 5,603	$ 11,542