Revenues and Trade Receivables, Net, Summary of Activity with Sales Related Allowances and Accruals (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenues and Trade Receivables, Net [Abstract]
Beginning balance	$ 2,138
Provision	2,164
Payments / credits	(1,959)
Ending balance	2,343
Accrued balances - Trade and other receivables, net	536	$ 416
Accrued balances - Accounts payable and accrued expense	$ 1,807	$ 1,722