Cost Reduction Actions (Summary of Radyne Acquisition Related Restructuring Plan) (Details) (USD $)	Oct. 31, 2008
Cost Reduction Actions [Abstract]
Business acquisition restructuring costs, total estimated costs	$ 2,713,000
Business acquisition restructuring costs related to severance for employees	$ 613,000

Amount of the acquisition costs expected to be expended for restructuring activities for the acquired entity. Exit activities of the acquired entity may include involuntary termination benefits to be paid to acquired entity employees, and relocation costs for employees of acquired entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3
-Paragraph 1
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityPlannedRestructuringActivities
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant