Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2012

Segment Reporting [Abstract]

Schedule of operations by geographic segment

	Sales Originating From
Three months ended June 30, 2012	Americas			Europe and Asia			Total
Mobile communications sales to the United States	$	16,471		$	—		$	16,471
Mobile communications sales to Canada		217			—			217
Mobile communications sales to Europe		119			5,321			5,440
Mobile communications sales to other geographic areas		650			1,266			1,916
Guidance and stabilization sales to the United States		2,369			—			2,369
Guidance and stabilization sales to Canada		2,641			—			2,641
Guidance and stabilization sales to Europe		2,314			—			2,314
Guidance and stabilization sales to other geographic areas		651			—			651
Intercompany sales		3,637			626			4,263
Subtotal		29,069			7,213			36,282
Eliminations		(3,637	)		(626	)		(4,263	)
Net sales	$	25,432		$	6,587		$	32,019
Segment net income (loss)	$	896		$	(443	)	$	453
Depreciation and amortization	$	1,012		$	79		$	1,091
Total assets	$	106,111		$	20,553		$	126,664
	Sales Originating From
Three months ended June 30, 2011	Americas			Europe and Asia			Total
Mobile communication sales to the United States	$	12,969		$	—		$	12,969
Mobile communication sales to Canada		308			—			308
Mobile communication sales to Europe		107			3,951			4,058
Mobile communication sales to other geographic areas		398			1,310			1,708
Guidance and stabilization sales to the United States		3,405			—			3,405
Guidance and stabilization sales to Canada		2,016			—			2,016
Guidance and stabilization sales to Europe		2,434			—			2,434
Guidance and stabilization sales to other geographic areas		3,674			—			3,674
Intercompany sales		3,039			324			3,363
Subtotal		28,350			5,585			33,935
Eliminations		(3,039	)		(324	)		(3,363	)
Net sales	$	25,311		$	5,261		$	30,572
Segment net income (loss)	$	209		$	(19	)	$	190
Depreciation and amortization	$	994		$	105		$	1,099
Total assets	$	99,006		$	18,625		$	117,631
	Sales Originating From
Six months ended June 30, 2012	Americas			Europe and Asia			Total
Mobile communication sales to the United States	$	30,593		$	—		$	30,593
Mobile communication sales to Canada		365			—			365
Mobile communication sales to Europe		243			9,610			9,853
Mobile communication sales to other geographic areas		1,507			2,556			4,063
Guidance and stabilization sales to the United States		3,258			—			3,258
Guidance and stabilization sales to Canada		5,207			—			5,207
Guidance and stabilization sales to Europe		4,351			—			4,351
Guidance and stabilization sales to other geographic areas		1,057			—			1,057
Intercompany sales		6,631			1,050			7,681
Subtotal		53,212			13,216			66,428
Eliminations		(6,631	)		(1,050	)		(7,681	)
Net sales	$	46,581		$	12,166		$	58,747

	Sales Originating From
Three months ended June 30, 2012	Americas			Europe and Asia			Total
Segment net loss	$	(375	)	$	(547	)	$	(922	)
Depreciation and amortization	$	1,991		$	215		$	2,206
Total assets	$	106,111		$	20,553		$	126,664
	Sales Originating From
Six months ended June 30, 2011	Americas			Europe and Asia			Total
Mobile communication sales to the United States	$	24,036		$	—		$	24,036
Mobile communication sales to Canada		476			—			476
Mobile communication sales to Europe		203			7,276			7,479
Mobile communication sales to other geographic areas		757			2,010			2,767
Guidance and stabilization sales to the United States		7,383			—			7,383
Guidance and stabilization sales to Canada		4,312			—			4,312
Guidance and stabilization sales to Europe		4,259			—			4,259
Guidance and stabilization sales to other geographic areas		4,269			—			4,269
Intercompany sales		4,618			518			5,136
Subtotal		50,313			9,804			60,117
Eliminations		(4,618	)		(518	)		(5,136	)
Net sales	$	45,695		$	9,286		$	54,981
Segment net loss	$	(1,283	)	$	(61	)	$	(1,344	)
Depreciation and amortization	$	1,996		$	213		$	2,209
Total assets	$	99,006		$	18,625		$	117,631