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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

				Fair Value Measurements at June 30, 2012
		Fair Value		Using Fair Value Hierarchy
		as of
Assets		June 30, 2012		Level 1		Level 2		Level 3
Company-owned life insurance		$	1,585	$	0	$	1,585	$	0
Company-owned life insurance - Deferred compensation assets			441		0		441		0
Other deferred compensation assets
	Large capitalization registered investment companies		59		59		0		0
	Mid capitalization registered investment companies		5		5		0		0
	Small capitalization registered investment companies		8		8		0		0
	International developed and emerging markets registered investment
companies			32		32		0		0
	Fixed income registered investment companies		9		9		0		0

Total		$	2,139	$	113	$	2,026	$	0

				Fair Value Measurements at December 31, 2011
		Fair Value		Using Fair Value Hierarchy
		as of
Assets		December 31, 2011		Level 1		Level 2		Level 3
Company-owned life insurance		$	1,508	$	0	$	1,508	$	0
Company-owned life insurance - Deferred compensation assets			487		0		487		0
Other deferred compensation assets
	Large capitalization registered investment companies		64		64		0		0
	Mid capitalization registered investment companies		4		4		0		0
	Small capitalization registered investment companies		7		7		0		0
	International developed and emerging markets registered investment
companies			32		32		0		0
	Fixed income registered investment companies		8		8		0		0

Total		$	2,110	$	115	$	1,995	$	0

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

				Fair Value Measurements at June 30, 2012
		Fair Value		Using Fair Value Hierarchy
		as of
Liabilities		June 30, 2012		Level 1		Level 2		Level 3
Deferred compensation liabilities
	Large capitalization registered investment companies	$	314	$	314	$	0	$	0
	Mid capitalization registered investment companies		83		83		0		0
	Small capitalization registered investment companies		68		68		0		0
	International developed and emerging markets registered investment
companies			163		163		0		0
	Fixed income registered investment companies		48		48		0		0
	Fixed general account		169		0		169		0
Interest rate derivatives			112		0		112		0
Acquisition-related consideration			9,506		0		0		9,506

Total		$	10,463	$	676	$	281	$	9,506

				Fair Value Measurements at December 31, 2011
		Fair Value		Using Fair Value Hierarchy
		as of
Liabilities		December 31, 2011		Level 1		Level 2		Level 3
Deferred compensation liabilities
	Large capitalization registered investment companies	$	318	$	318	$	0	$	0
	Mid capitalization registered investment companies		83		83		0		0
	Small capitalization registered investment companies		68		68		0		0
	International developed and emerging markets registered investment
companies			168		168		0		0
	Fixed income registered investment companies		50		50		0		0
	Fixed general account		177		0		177		0
Interest rate derivatives			418		0		418		0
Acquisition related consideration			8,898		0		0		8,898

Total		$	10,180	$	687	$	595	$	8,898

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

						Non-competition
		Earnout		Hold-back		Agreement		Hold-back
		Summit		Tecniquimia		Obligation		GW Smith		Total
Balance at December 31, 2011		$	5,444	$	1,877	$	675	$	902	$	8,898
	Interest accretion		395		123		25		65		608
Balance at June 30, 2012		$	5,839	$	2,000	$	700	$	967	$	9,506

Fair Value Inputs Liabilities Quantitative Information [Table Text Block]

	Fair value at June 30, 2012	Valuation technique	Unobservable input	Input value
Summit earnout	5,839	Discounted cash flow	Discount rate	14.5%
Tecniquimia hold-back	2,000	Discounted cash flow	Discount rate	14.0%
Non-competition agreement obligation	700	Discounted cash flow	Discount rate	14.0%
G.W. Smith hold-back	967	Discounted cash flow	Discount rate	15.0%

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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- Definition

Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

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- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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