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Income Taxes (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2015
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2012
Income Taxes [Line Items]                
Unrecognized Tax Benefits   $ 1,267,000   $ 1,267,000   $ 1,184,000    
Income Tax Examination, Penalties and Interest Accrued   600,000   600,000   500,000    
Foreign Income Tax Expense (Benefit), Continuing Operations $ 300,000              
Income Tax Expense (Benefit)   $ 94,000 $ 258,000 539,000 $ 776,000      
Percentage for Subsidiary Service Tax             14.50%  
Subsidiary Revenue           $ 16,800,000    
Indian Bureau Of Taxation [Member]                
Income Taxes [Line Items]                
Foreign Income Tax Expense (Benefit), Continuing Operations       335,000       $ 1,000,000
Tax Adjustments, Settlements, and Unusual Provisions       536,000        
Deferred Foreign Income Tax Expense (Benefit)       211,000        
Income Tax Expense (Benefit)       536,000        
Philippine Bureau Of Taxation [Member]                
Income Taxes [Line Items]                
Income Tax Expense (Benefit)       185,000        
Asian Operating Subsidiaries [Member]                
Income Taxes [Line Items]                
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount       7,000,000        
Deferred Income Tax Expense (Benefit)       $ 4,700,000