Business Combination (Tables)

9 Months Ended

Sep. 30, 2012

Business Combinations [Abstract]

Purchase Price Allocation for VCON Business Combination

The preliminary fair value of identified assets and liabilities acquired and goodwill is as follows:

Inventory	$	320
Property and equipment	34
Product warranty liability	(8		)
Tradename	500
Patents and technology	2,300
Proprietary software	500
In-process research and development	200
Goodwill	786
	$	4,632

Pro Forma Revenue and Earnings

Revenue and earnings of the combined entity as though the business combination occurred as of January 1, 2011 is as follows:

	Three months ended September 30,				Nine months ended September 30,
	2012		2011		2012		2011
Revenue	$	11,573	$	11,886	$	33,595	$	35,249
Net income	929		3,152		1,913		5,115