The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References+ Details

Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment.

+ References

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+ Details

Goodwill and Intangible Assets (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Goodwill and Intangible Assets (Additional Textual) [Abstract]
Impairment of goodwill			$ 0
Amortization expense for intangible assets	$ 500,000	$ 400,000	$ 1,100,000	$ 800,000
Customer relationships [Member] \| Minimum [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Period of amortization of intangible assets			5 years
Customer relationships [Member] \| Maximum [Member]
Goodwill and Intangible Assets (Textual) [Abstract]
Period of amortization of intangible assets			10 years