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Note 4 - Goodwill and Intangible Assets (Detail) - Changes in the Amount of the Carrying Value of Finite-Lived Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Balance - January 1, 2013	$ 2,194
Amortization	(115)	(148)
Balance - March 31, 2013	$ 2,079

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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