SEGMENT INFORMATION (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2012	Aug. 31, 2011
Percentage Of Gross Margin	32.10%	35.00%	31.70%	31.10%
Share-Based Compensation			$ 1,672	$ 1,099
Revenue, Net	43,987	33,801	87,848	68,355
Wireless Datacom [Member]
Percentage Of Gross Margin	36.40%	44.60%	36.70%	42.00%
Revenue, Net	34,173	25,523	65,844	47,560
Wireless Datacom [Member] \| Exclusion Of Patent Sale [Member]
Percentage Of Gross Margin		37.20%		38.10%
Revenue, Net		3,000		3,000
Corporate Expenses [Member]
Share-Based Compensation	$ 358	$ 218	$ 825	$ 429

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration