Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2014
Income Taxes [Line Items]
Net operating loss carry forwards	$ 17,623	$ 18,535
Stock based compensation	1,007	921
Equity method investments	(478)	(497)
Other	152	(72)
Gross deferred tax assets	17,499	18,011
Less: valuation allowance	(13,097)	(17,639)	$ (28,933)
Deferred tax assets, net of valuation allowance	4,402			$ 0
Deferred tax assets, net of valuation allowance		372
Trade Names And Customer Relationships [Member]
Income Taxes [Line Items]
Trade names and customer relationships	$ (805)	$ (876)

Income taxes.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from equity method investments.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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