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Taxes (Details Textual) - USD ($)
 1 Months Ended 12 Months Ended
Apr. 30, 2015
Dec. 31, 2026
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2012
Income Taxes [Line Items]              
Unrecognized Tax Benefits       $ 911,000 $ 1,184,000 $ 1,207,000  
Income Tax Examination, Penalties and Interest Accrued       400,000 500,000    
Foreign Income Tax Expense (Benefit), Continuing Operations $ 300,000            
Income Tax Expense (Benefit)       285,000 1,126,000    
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount       4,100,000 700,000    
Undistributed Earnings of Foreign Subsidiaries       24,800,000      
Income Tax Holiday, Aggregate Dollar Amount       200,000 200,000    
Deferred Tax Assets, Valuation Allowance       6,525,000 $ 10,556,000    
Dividends, Total       5,200,000      
Percentage for Subsidiary Service Tax           14.50%  
Subsidiary Revenue       $ 15,600,000      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent       34.00% 34.00%    
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount       $ 6,400,000      
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount       4,800,000      
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount       100,000      
Operating Loss Carryforwards, Valuation Allowance       2,200,000      
Canadian subsidiaries [Member]              
Income Taxes [Line Items]              
Operating Loss Carryforwards       $ 8,200,000      
Global Intangible Low-Taxed Income [Member]              
Income Taxes [Line Items]              
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent       10.50%      
Scenario, Plan [Member]              
Income Taxes [Line Items]              
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent     21.00%        
Scenario, Plan [Member] | Global Intangible Low-Taxed Income [Member]              
Income Taxes [Line Items]              
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent   13.125%          
Accounting Standards Update 2016-9 [Member]              
Income Taxes [Line Items]              
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount       $ 1,800,000      
Research Tax Credit Carryforward [Member] | Canadian subsidiaries [Member]              
Income Taxes [Line Items]              
Tax Credit Carryforward, Amount       $ 1,800,000      
Maximum [Member]              
Income Taxes [Line Items]              
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent       35.00%      
Windfall [Member]              
Income Taxes [Line Items]              
Operating Loss Carryforwards       $ 5,200,000      
Domestic Tax Authority [Member]              
Income Taxes [Line Items]              
Operating Loss Carryforwards       15,500,000      
Foreign Tax Authority [Member]              
Income Taxes [Line Items]              
Operating Loss Carryforwards       16,900,000      
Indian Bureau Of Taxation [Member]              
Income Taxes [Line Items]              
Foreign Income Tax Expense (Benefit), Continuing Operations       356,000     $ 1,000,000
Tax Adjustments, Settlements, and Unusual Provisions       371,000      
Income Tax Expense (Benefit)       371,000      
Philippine Bureau Of Taxation [Member]              
Income Taxes [Line Items]              
Income Tax Expense (Benefit)       184,000      
MediaMiser [Member]              
Income Taxes [Line Items]              
Tax Credit Carryforward, Amount       $ 100,000 $ 200,000