SCHEDULE II - VALUATION ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accounts receivable, allowance for doubtful accounts
Valuation accounts
Balance at Beginning of Period	$ 2,559	$ 949
Additions Charged (Credited) to Expense	(829)	1,610
Net (Deductions) Recoveries	0	0
Balance at End of Period	1,730	2,559
Deferred tax valuation allowance
Valuation accounts
Balance at Beginning of Period	652	806
Additions Charged (Credited) to Expense	(499)	(154)
Net (Deductions) Recoveries	0	0
Balance at End of Period	$ 153	$ 652