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Note 8 - Goodwill and Intangible Assets (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Equity, Fair Value Disclosure	$ 140,000,000
Members' Equity	127,600,000
Amortization of Intangible Assets	$ 483,000	$ 698,000	$ 796,000

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.

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