For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of deposits held by branches of foreign institutions.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Note B - Summary of Significant Accounting Policies (Details Textual) - USD ($)	3 Months Ended								9 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Minimum [Member] \| Other Assets [Member]
Finite-Lived Intangible Asset, Useful Life										3 years
Minimum [Member]
Property, Plant and Equipment, Useful Life										2 years
Finite-Lived Intangible Asset, Useful Life										1 year
Maximum [Member] \| Other Assets [Member]
Finite-Lived Intangible Asset, Useful Life										5 years
Maximum [Member]
Property, Plant and Equipment, Useful Life										7 years
Finite-Lived Intangible Asset, Useful Life										10 years
Federal Government Agencies And Departments [Member] \| Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Concentration Risk, Percentage										48.00%	51.00%	58.00%
Federal Government Agencies And Departments [Member]
Revenues										$ 540,000,000	$ 532,000,000	$ 550,000,000
International Clients [Member] \| Geographic Concentration Risk [Member] \| Sales Revenue, Net [Member]
Concentration Risk, Percentage										11.00%	12.00%	9.00%
Goodwill, Impairment Loss									$ 0
Number of Reporting Units										1
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		$ 4,000,000								$ (5,676,000)	$ (2,017,000)	$ 251,000
Other Comprehensive Income (Loss), Tax										$ 1,000,000	400,000	0
Number of Operating Segments										1
Revenues	$ 280,805,000	$ 288,951,000	$ 288,949,000	$ 273,527,000	$ 276,426,000	$ 264,796,000	$ 263,860,000	$ 245,052,000		$ 1,132,232,000	1,050,134,000	$ 949,303,000
Foreign Financial Institutions, Actual Deposits	$ 6.50				$ 10.10					$ 6.50	$ 10.10