Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Accounts Receivable Additional Disclosures [Abstract]
Allowance doubtful accounts, receivables	$ 1,393		$ 1,393		$ 1,100
Reserve for (income) from uncollectable accounts	$ 198	$ 4	$ 362	$ 104