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Interest bearing securities with maturities.

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Maximum customer percentage accounts receivable.

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Revenue account percentage

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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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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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-Name Accounting Research Bulletin (ARB)

-Number 43

-Section B

-Paragraph 7

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-Chapter 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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-Name Accounting Standards Codification

-Topic 740

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Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended				3 Months Ended		3 Months Ended		3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2012 Maximum [Member]	Feb. 29, 2012 Maximum [Member]	Jun. 30, 2012 Minimum [Member]	Feb. 29, 2012 Minimum [Member]	Jun. 30, 2012 Subsequent Event [Member]
Basis of Presentation and Summary of Significant Accounting Policies (Textual) [Abstract]
Number of shares authorized to repurchase						16,000,000		1,000,000	9,818
Share price									$ 445,000
Average price per share									$ 45.40
Maximum Customer Percentage of Accounts Receivable not accounted	10.00%			10.00%
Maximum Customer Percentage of Revenues not accounted	10.00%	10.00%
Estimated useful life of property and equipment					7 years		1 year
Amortization period of computer software	5 years
Unrecognized tax benefits	$ 983,000		$ 1,021,000
Interest-bearing securities with maturities	90 days