Intangible Assets and Goodwill Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 236	$ 335
Cost of revenues
Finite-Lived Intangible Assets [Line Items]
Amortization expense associated with intangible assets	72	117
Operating expenses
Finite-Lived Intangible Assets [Line Items]
Amortization expense associated with intangible assets	$ 164	$ 218