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Income Taxes - Tax Cuts and Jobs Act (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Pre-tax loss carryforwards	$ 40,400	$ 40,400
Operating loss carryforwards, subject to expiration	100	100
Deferred tax asset valuation allowance	(11,316)	(11,316)	$ (11,617)
Increase (decrease) in the valuation allowance		$ 300	$ (1,600)
Foreign earnings repatriated	63,000
Taxes on foreign earnings repatriated	$ 1,000

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
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Amount of foreign earnings repatriated from subsidiaries outside the country of domicile.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to repatriation of foreign earnings.

+ References

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-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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-SubTopic 10
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