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Note B - Summary of Significant Accounting Policies (Details) (USD $)
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Sep. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Revenues $ 229,759,000 $ 244,055,000 $ 241,568,000 $ 233,921,000 $ 231,979,000 $ 237,864,000 $ 239,649,000 $ 227,641,000   $ 949,303,000 $ 937,133,000 $ 840,775,000
Goodwill, Impairment Loss                 0      
Number of Reportable Segments                   1    
Foreign Financial Institutions, Actual Deposits 5,300,000       7,300,000         5,300,000 7,300,000  
United States Government [Member] | Sales Revenue, Services, Net [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Concentration Risk, Percentage                   58.00% 60.00% 66.00%
HHS [Member] | Sales Revenue, Services, Net [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Concentration Risk, Percentage                   18.00% 19.00% 22.00%
HHS [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Revenues                   173,700,000 180,100,000 184,500,000
Accounts Receivable, Net 11,800,000       21,300,000         11,800,000 21,300,000  
Other Assets [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Finite-Lived Intangible Asset, Useful Life                   5 years    
Capitalized Computer Software, Gross 1,600,000       1,500,000         1,600,000 1,500,000  
Capitalized Computer Software, Amortization                   $ 300,000 $ 300,000 $ 300,000
Sales Revenue, Services, Net [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Concentration Risk, Percentage                   100.00% 100.00% 100.00%
Minimum [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Property, Plant and Equipment, Useful Life                   2 years    
Finite-Lived Intangible Asset, Useful Life                   1 year    
Maximum [Member]
                        
Note B - Summary of Significant Accounting Policies (Details) [Line Items]                        
Property, Plant and Equipment, Useful Life                   7 years    
Finite-Lived Intangible Asset, Useful Life                   10 years