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Basis of Presentation (Details Textual) (USD $)
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3 Months Ended | 3 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2012
Employee
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Jun. 30, 2011
|
May 15, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
Sale of Conference Plus, Inc [Member]
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Jun. 30, 2011
Sale of Customer Networking Solutions Assets [Member]
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Apr. 15, 2011
Sale of Customer Networking Solutions Assets [Member]
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May 15, 2012
ANTONE Wireless Corporation [Member]
Employee
|
Jun. 30, 2012
ANTONE Wireless Corporation [Member]
Customer Contracts and Relationships [Member]
|
Jun. 30, 2012
Customer Relationships [Member]
|
Jun. 30, 2012
Technology [Member]
|
|
| Basis of Presentation (Textual) [Abstract] | |||||||||||
| Number of employees affected by planned relocation | 35 | ||||||||||
| Number of Employee Hired | 9 | ||||||||||
| Amount of rights of ANTONE products | $ 2,524,000 | $ 2,500,000 | |||||||||
| Contingent cash consideration | 3,500,000 | ||||||||||
| Total acquired intangible assets | 3,600,000 | 30,000 | 300,000 | 3,300,000 | |||||||
| Sale of conference plus | 40,300,000 | ||||||||||
| Deposit | 4,100,000 | 3,400,000 | 3,000 | ||||||||
| Proceeds from CNS asset sale | 36,637,000 | 36,600,000 | |||||||||
| Pre-tax gain on CNS asset sale | 31,608,000 | 31,600,000 | |||||||||
| Inventories, net of reserve | 10,374,000 | 9,906,000 | 353,000 | ||||||||
| Offset amount contingent consideration | $ 419,000 | ||||||||||