Organization and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlockAbstract

Allowance for Credit Losses on Financing Receivables

The table below sets forth the components of the Allowance for Doubtful Accounts for the years ended December 31.

Year	Balance at January 1		Provision charged to expense		Write-offs / Recoveries			Balance at December 31
2011	$	82	$	510	$	(162	)	$	430
2012	$	430	$	246	$	(216	)	$	460
2013	$	460	$	1,175	$	(446	)	$	1,189

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in accumulated other comprehensive income (loss) by component were as follows:

	December 31,
	2013			2012
Foreign currency translation
Balance at beginning of period	$	(420	)	$	345
Other comprehensive income (loss):
Foreign currency translation adjustments (1)	438			(765		)
Balance at end of period	$	18		$	(420	)
Available-for-sale marketable securities
Balance at beginning of period	$	28		$	36
Other comprehensive income (loss):
Net unrealized holding gain (loss) (2)	(14		)	(8		)
Deferred income taxes (2)	5			—
Total other comprehensive income (loss)	(9		)	(8		)
Balance at end of period	$	19		$	28
Total accumulated other comprehensive income (loss)	$	37		$	(392	)

(1) In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.

(2) In all periods presented, there were no realized holding gains or losses and therefore no amounts were reclassified to earnings.

Schedule of Finite-Lived Intangible Assets

The table below shows the amortization period and other intangible asset cost by intangible asset as of December 31, 2013 and 2012, and the accumulated amortization and net intangible asset value in total for all other intangible assets.

		2013							2012
Description of Other Intangible	Amortization Period	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer lists	3-15 years	$	4,567	$	(2,541	)	$	2,026	$	4,567	$	(2,186	)	$	2,381
Tradenames	8 years	351		(219		)	132		351		(175		)	176
Patent assets	12-18 years	2,388		(822		)	1,566		2,083		(667		)	1,416
Covenants not to compete	5-6 years	376		(376		)	—		376		(313		)	63
Acquired technologies	7-8 years	1,731		(1,150		)	581		1,731		(929		)	802
Total		$	9,413	$	(5,108	)	$	4,305	$	9,108	$	(4,270	)	$	4,838

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The table below shows the estimated future amortization expense for intangible assets:

Year	Estimated Amortization Expense
2014	$	777
2015	745
2016	725
2017	414
2018	394
Thereafter	1,250
Total	$	4,305

Property, Plant and Equipment

The table below shows the depreciable life and cost by asset class as of December 31, 2013 and 2012, and the accumulated depreciation and net book value in total for all classes of assets.

Description of Property and Equipment	Depreciable Life	2013			2012
Land		$	1,440		$	1,440
Building	39 years	4,535			4,535
Building and leasehold improvements	3-39 years	4,898			4,480
Field equipment	3-4 years	18,006			17,746
Computer equipment and software	2-3 years	2,677			3,151
Furniture and fixtures	3-10 years	1,512			1,782
Vehicles	5 years	36			36
Total cost		33,104			33,170
Less accumulated depreciation		(20,077		)	(19,421		)
Total net book value		$	13,027		$	13,749

Schedule of Earnings Per Share, Basic and Diluted

The table below sets forth the weighted-average shares used at December 31 in calculating earnings (loss) per share:

	2013	2012	2011
Basic weighted-average shares	22,286,000	22,709,000	24,095,000
Conversion of unsecured loan notes	7,000	7,000	7,000
Unexercised options and unvested restricted stock units	286,000	819,000	531,000
Diluted weighted-average shares	22,579,000	23,535,000	24,633,000