Acquisitions (Narrative) (Details) (USD $)		9 Months Ended
	Dec. 31, 2009	Oct. 14, 2011 Windsor Management Group, L.L.C [Member]	Jan. 02, 2010 Wiznet, Inc. [Member]	Jul. 16, 2009 Parker-Lowe & Associates [Member]	Apr. 03, 2009 Assessment Evaluation Services, Inc. [Member]
Business Acquisition [Line Items]
Date of acquisition		October 14, 2011
Purchase price in cash					$ 1,100,000
Assets acquired		16,400,000	9,500,000	700,000
Cash acquired		7,400,000
Customer relationship		5,600,000
Acquired software		2,400,000
Deferred revenue		6,200,000
Total tangible assets acquired		1,500,000
Goodwill		13,300,000
Other intangible assets	$ 1,100,000