Summary of Significant Accounting Policies - Summary of company's revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Total	$ 147,605	$ 162,059
Product [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total	143,210	157,512
Refrigerant Side Services [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Total	$ 4,395	$ 4,547