COVID-19 Risks and Uncertainties (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Risks and Uncertainties [Abstract]
Canada Emergency Wage Subsidy	$ 900
Cash and cash equivalents	17,193	$ 5,495	$ 8,626
Restricted cash	802	$ 802	$ 800
Line of Credit Facility, Remaining Borrowing Capacity	$ 66,000

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant