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Note J - Fair Value of Financial Instruments (Details) - Fair Value of Long-term Debt Other Than Lines of Credit (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Fair Value of Long-term Debt Other Than Lines of Credit [Abstract]
Long-term debt	$ 105,090
Long-term debt	$ 104,927

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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