Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Assets
Total assets	$ 1,631	$ 1,597
Liabilities
Total liabilities	657	680
Marketable securities [Member]
Assets
Total assets	657	680
Cash surrender value of life insurance policies [Member]
Assets
Total assets	923	917
Foreign exchange contracts [Member]
Assets
Total assets	51
Deferred compensation plans [Member]
Assets
Total assets	657
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member]
Assets
Total assets	657	680
Liabilities
Total liabilities	657	680
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Marketable securities [Member]
Assets
Total assets	657	680
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Cash surrender value of life insurance policies [Member]
Assets
Total assets	0	0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Foreign exchange contracts [Member]
Assets
Total assets	0
Quoted Prices In Active Markets for Identical Assets (Level 1) [Member] | Deferred compensation plans [Member]
Liabilities
Total liabilities	657	680
Significant Other Observable Inputs (Level 2) [Member]
Assets
Total assets	974	917
Liabilities
Total liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member] | Marketable securities [Member]
Assets
Total assets	0	0
Significant Other Observable Inputs (Level 2) [Member] | Cash surrender value of life insurance policies [Member]
Assets
Total assets	923	917
Significant Other Observable Inputs (Level 2) [Member] | Foreign exchange contracts [Member]
Assets
Total assets	51
Significant Other Observable Inputs (Level 2) [Member] | Deferred compensation plans [Member]
Liabilities
Total liabilities	0	0
Significant Unobservable Inputs (Level 3) [Member]
Assets
Total assets	0	0
Liabilities
Total liabilities	0	0
Significant Unobservable Inputs (Level 3) [Member] | Marketable securities [Member]
Assets
Total assets	0	0
Significant Unobservable Inputs (Level 3) [Member] | Cash surrender value of life insurance policies [Member]
Assets
Total assets	0	0
Significant Unobservable Inputs (Level 3) [Member] | Foreign exchange contracts [Member]
Assets
Total assets	0
Significant Unobservable Inputs (Level 3) [Member] | Deferred compensation plans [Member]
Liabilities
Total liabilities	$ 0	$ 0