Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in goodwill

The table below summarizes changes in goodwill recorded by the Company during the periods ended March 31, 2013 and December 31, 2012:

	March 31, 2013		December 31, 2012
Beginning balance, January 1	$	34,817	$	32,168
Additions	—		2,649
Ending balance	$	34,817	$	34,817

Schedule of changes and amortization of finite-lived intangible assets

The tables below present the activity and amortizations of finite-lived intangible assets:

	Three months ended March 31,
	2013			2012
Intangible assets, January 1	$	7,602		$	6,900
Additions	—			—
Total intangible assets, end of period	7,602			6,900
Accumulated amortization	$	(6,975	)	$	(6,900	)
Current year amortization	(124		)
Total accumulated amortization	(7,099		)	(6,900		)
Net intangible assets, end of period	$	503		$	—

Schedule of future amortization expense of acquired finite-lived intangible assets

ntangible assets that were acquired in 2012 as part of the purchase of West Construction amortize over a period of one to three years, as follows:

	2013		2014		2015
Amortization	$	299	$	111	$	97