Line of Credit	12 Months Ended
Mar. 31, 2013
Debt Instruments [Abstract]
Debt Disclosure Text Block	4. Line of Credit The Company completed the closing of a new five year revolving credit facility (“Revolver”) on July 20, 2011. During 2013, the Company executed $50 million of the $200 million accordion feature of the Revolver to expand available borrowings under the Revolver from $250 million to $300 million from April through July and $350 million to $400 million from August through March. The maturity date for the Revolver is July 20, 2016. As of March 31, 2013, the outstanding balance of the Revolver was $188,000,000, with a weighted average interest rate of 1.70%, and is included in the Long-Term Debt on the Consolidated Balance Sheet. The Revolver is secured by accounts receivable and inventories with a carrying value of $562,864,000. The Company had $10,553,000 and $10,303,000 of outstanding standby letters of credit as of March 31, 2013 and 2012, respectively, which reduces borrowing availability under the Revolver. See Note 5, Long-Term Debt, for additional comments related to the Revolver.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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