Note B - Summary of Significant Accounting Policies (Details) - Percentage of Revenue by Contract Type (Sales Revenue, Services, Net [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note B - Summary of Significant Accounting Policies (Details) - Percentage of Revenue by Contract Type [Line Items]
Revenue by contract type, percentage	100.00%	100.00%	100.00%
Time-and-materials Contract [Member]
Note B - Summary of Significant Accounting Policies (Details) - Percentage of Revenue by Contract Type [Line Items]
Revenue by contract type, percentage	52.00%	49.00%	49.00%
Fixed-price Contract [Member]
Note B - Summary of Significant Accounting Policies (Details) - Percentage of Revenue by Contract Type [Line Items]
Revenue by contract type, percentage	29.00%	30.00%	28.00%
Cost-based Contract [Member]
Note B - Summary of Significant Accounting Policies (Details) - Percentage of Revenue by Contract Type [Line Items]
Revenue by contract type, percentage	19.00%	21.00%	23.00%