Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring Costs - Narrative (Details) - USD ($)	1 Months Ended		12 Months Ended
Restructuring Costs - Narrative (Details) - USD ($)	Jul. 31, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 0	$ 149,000	$ 0
Contract Termination \| Office Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 32,000	$ 117,000	$ 149,000