Segment Reporting and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Revenues by segment, including intersegment revenues

The following table summarizes revenues by segment, including intersegment revenues (in thousands):

	2012			2011			2010
Network Equipment segment		$87,727			$96,166		$	96,514
Network Integration segment	72,421			76,436			80,209
Before intersegment adjustments	160,148			172,602			176,723
Intersegment adjustments	(8,487		)	(15,534		)	(13,262		)
Total		$151,661			$157,068		$	163,461

External revenue and long-lived assets by geographical region

The following table summarizes external revenue by geographic region (in thousands):

Years Ended December 31,	2012		2011		2010
Americas		$53,258		$57,433	$	52,819
Europe	88,868		94,317		100,782
Asia Pacific	9,521		5,296		9,779
Other regions	14		22		81
Total		$151,661		$157,068	$	163,461

The following table summarizes long-lived assets, consisting of property and equipment, by geographic region (in thousands):

	December 31, 2012		December 31, 2011
Americas		$2,099		$2,150
Europe	1,590		1,558
Asia Pacific	46		52
Total		$3,735		$3,760

Statement of Operations information by business segment

The following table provides selected Statement of Operations information by business segment (in thousands):

Years ended December 31,	2012			2011			2010
Gross profit
Network Equipment segment	$	43,325		$	49,423		$	52,222
Network Integration segment	11,832			12,659			15,718
Before intersegment adjustments	55,157			62,082			67,940
Corporate unallocated and intersegment adjustments (1)	(5		)	(408		)	(199		)
Total	$	55,152		$	61,674		$	67,741
Depreciation expense
Network Equipment segment	$	1,022		$	843		$	784
Network Integration segment	234			243			312
Corporate	192			180			59
Total	$	1,448		$	1,266		$	1,155
Operating income (loss)
Network Equipment segment	$	1,096		$	4,539		$	5,559
Network Integration segment	4,514			6,036			7,833
Before intersegment adjustments	5,610			10,575			13,392
Corporate unallocated operating loss and adjustments (1)	(15,457		)	(14,292		)	(11,777		)
Total operating income (loss)	$	(9,847	)	$	(3,717	)	$	1,615
Provision (benefit) for income taxes
Network Equipment segment	$	(2,468	)	$	(3,289	)	$	(3,364	)
Network Integration segment	1,455			2,098			2,896
Corporate	—			—			—
Total	$	(1,013	)	$	(1,191	)	$	(468	)

(1) Adjustments reflect the elimination of intersegment revenue and profit in inventory.

Balance Sheet and Statement of Cash Flow information by business segment

The following tables provide selected Balance Sheet and Statement of Cash Flow information by business segment (in thousands):

December 31:	2012		2011
Additions to Fixed Assets
Network Equipment segment	$	1,296	$	1,129
Network Integration segment	85		328
Corporate	86		212
Discontinued operations	1,442		1,449
Total	$	2,909	$	3,118
Total Assets
Network Equipment segment	$	44,445	$	46,101
Network Integration segment	47,400		46,279
Corporate and intersegment eliminations	36,720		52,636
Discontinued operations	—		85,673
Total	$	128,565	$	230,689
Goodwill
Network Integration segment	—		1,071
Total	$	—	$	1,071