Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	$ 277		$ 835	$ 724	$ 1,253
Unrecognized stock-based compensation expense	1,000			$ 1,000
Weighted average remaining vesting period				1 year 6 months
Cost of sales
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	10		34	$ (16)	82
Reversal of compensation expense as a result of unvested awards terminating		$ 39
Selling, general and administrative expense
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	$ 267		$ 801	$ 740	$ 1,171