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Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2020
Income Tax Disclosure [Abstract]  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
The components of loss before income taxes were as follows (in thousands):
 Year Ended December 31,
 20202019
Domestic$(4,550)$(1,815)
Foreign(1,229)(2,466)
Total$(5,779)$(4,281)
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
A reconciliation of income taxes computed by applying the federal statutory income tax rate of 26.5% to loss before income taxes to the total income tax benefit reported in the accompanying consolidated statements of operations is as follows (in thousands): 
 Year Ended December 31,
 20202019
Income tax at statutory rate$(1,531)$(1,134)
Foreign rate differential(37)(77)
Change in valuation allowance1,588 15,104 
Share-based compensation expense— 85 
Prior year true-ups119 (13,371)
Other differences(135)(607)
Provision for income taxes$4 $— 
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] A valuation allowance has been recorded, as realization of such assets is uncertain. Deferred income taxes are comprised as follows (in thousands):
 December 31,
 20202019
Deferred tax assets:  
Net operating loss and capital loss carryforwards$26,539 $25,064 
Intangible assets2,381 2,319 
Share-based compensation1 28 
Other992 893 
Deferred tax assets, gross29,913 28,304 
Valuation allowance for deferred tax assets(29,854)(28,246)
Deferred tax assets, net of valuation allowance59 58 
Deferred tax liabilities:
Indefinite-lived intangible assets(74)(74)
Deferred tax liabilities(74)(74)
Net deferred tax liabilities$(15)$(16)