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Acquisitions (Details Textual) (USD $)
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3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2013
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2013
Kentrox [Member]
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Apr. 02, 2013
Kentrox [Member]
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Jun. 30, 2013
Antone [Member]
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Sep. 30, 2012
Antone [Member]
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May 15, 2012
Antone [Member]
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Jun. 30, 2013
Kentrox [Member]
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Jun. 30, 2013
Customer Relationships [Member]
Kentrox [Member]
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Apr. 02, 2013
Customer Relationships [Member]
Kentrox [Member]
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Jun. 30, 2013
Customer Relationships [Member]
Antone [Member]
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May 15, 2012
Customer Relationships [Member]
Antone [Member]
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Jun. 30, 2013
Technology [Member]
Kentrox [Member]
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Apr. 02, 2013
Technology [Member]
Kentrox [Member]
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Jun. 30, 2013
Technology [Member]
Antone [Member]
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May 15, 2012
Technology [Member]
Antone [Member]
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| Business Acquisition [Line Items] | |||||||||||||||||
| Business Acquisition, Cost of Acquired Entity, Cash Paid | $ 30,000,000 | $ 2,524,000 | |||||||||||||||
| Working Capital Adjustment | 1,300,000 | ||||||||||||||||
| Business Combination, Acquisition Related Costs | 300,000 | ||||||||||||||||
| Revenue | 22,456,000 | 9,418,000 | 12,004,000 | ||||||||||||||
| Operating income (loss) | (2,601,000) | (3,498,000) | 515,000 | ||||||||||||||
| Maximum ANTONE earn-out that could be paid before offsets | 3,500,000 | 3,500,000 | |||||||||||||||
| Intangible assets | 16,970,000 | 3,230,000 | 8,960,000 | 400,000 | 4,410,000 | 2,800,000 | |||||||||||
| Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 10 years | 8 years | 10 years | 8 years | |||||||||||||
| Specific pre-acquisition ANTONE product warranty in excess of acquired limit | 303,000 | 303,000 | |||||||||||||||
| Pre Acquisition Warranty Costs | $ 25,000 | ||||||||||||||||