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Note 11 - Liabilities (Detail) - The future principal payments due on the notes payable are as follows: (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
2013	$ 4,000
2014	4,000
2015	5,000
	$ 13,000

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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