Coronavirus Aid, Relief and Economic Security Act (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Employee Retention Credits [Abstract]
Tax benefit recognized	$ (4)		$ 180	$ (39)	$ 50
Paycheck Protection Program [Member]
Paycheck Protection Program Loan [Abstract]
Amount received from Paycheck Protection Program	$ 10,000			$ 10,000
Interest rate	1.00%			1.00%
Percentage of principal amount of loan guaranteed	100.00%			100.00%
Accrued interest	$ 118			$ 118
Interest expense	25			50
Employee Retention Credits [Abstract]
Refund of employee retention credit	$ 1,800	$ 2,400
Tax benefit recognized				$ 900