UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - Suppplemental Cash Flow Disclosure (VCON Video Conferencing, Ltd. (VCON) [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
VCON Video Conferencing, Ltd. (VCON) [Member]
Other Significant Noncash Transactions [Line Items]
Inventory	$ 0	$ 40
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment	0	34
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Product Warranty Accrual	0	(8)
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets	0	2,247
Business Acquisition, Purchase Price Allocation, Goodwill Amount	0	2,319
Business Acquisition, Cost of Acquired Entity, Cash Paid	$ 0	$ 4,632

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed, Product Warranty Accrual

No definition available.

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- Definition

Amount of cash paid to acquire the entity.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 68

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- Definition

The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will be amortized.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

+ References

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

-Publisher FASB

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- Definition

The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

+ References

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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