Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Accounts Receivable Additional Disclosures [Abstract]
Allowance doubtful accounts, receivables	$ 1,176		$ 1,176		$ 1,073
Reserve for (income) from uncollectable accounts	$ (63)	$ (119)	$ 221	$ (34)