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Income Taxes (Details Textual) (USD $)
3 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2013
Indian Bureau Of Taxation [Member]
Mar. 31, 2013
Indian Bureau Of Taxation [Member]
Fiscal Tax YE March 31 2003 [Member]
Mar. 31, 2013
Indian Bureau Of Taxation [Member]
Fiscal Tax YE March 31 2008 [Member]
Mar. 31, 2013
Indian Bureau Of Taxation [Member]
Fiscal Tax YE March 31 2005 [Member]
Mar. 31, 2013
Indian Bureau Of Taxation [Member]
Fiscal Tax YE March 31 2006 [Member]
Mar. 31, 2013
Philippine Bureau Of Taxation [Member]
Unrecognized Tax Benefits $ 2,377,000 $ 2,350,000            
Income Tax Examination, Penalties and Interest Accrued 800,000 700,000            
Foreign Income Tax Expense (Benefit), Continuing Operations       339,000 1,100,000 340,000 345,000  
Tax Adjustments, Settlements, and Unusual Provisions     331,000          
Informal Tax Assessment Received Amount               3,800,000
Additional Foreign Income Tax Expense Benefit Continuing Operations     $ 1,000,000