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Note 4 - Long-term Debt (Details) - Long-term Debt (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014
Note 4 - Long-term Debt (Details) - Long-term Debt [Line Items]
Long-term debt	$ 28,000
Less: current portion	(3,000)	0
Long-term portion	25,000	16,500
Line of Credit [Member]
Note 4 - Long-term Debt (Details) - Long-term Debt [Line Items]
Long-term debt	13,000	16,500
Term Loan [Member]
Note 4 - Long-term Debt (Details) - Long-term Debt [Line Items]
Long-term debt	$ 15,000

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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