Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Mar. 31, 2013
Liabilities, Fair Value Disclosure [Abstract]
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedCurrent	$ 180	$ 0
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedNonCurrent	1,620	0
Estimate of Fair Value, Fair Value Disclosure [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash Surrender Value, Fair Value Disclosure	3,721	3,673
Liabilities, Fair Value Disclosure [Abstract]
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedCurrent	180
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedNonCurrent	1,620
Active markets for identical assets or liabilities (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash Surrender Value, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure [Abstract]
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedCurrent	0
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedNonCurrent	0
Quoted prices in similar instruments and observable inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash Surrender Value, Fair Value Disclosure	0	0
Liabilities, Fair Value Disclosure [Abstract]
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedCurrent	0
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedNonCurrent	0
Active markets for unobservable inputs (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Assets, Fair Value Disclosure [Abstract]
Cash Surrender Value, Fair Value Disclosure	3,721	3,673
Liabilities, Fair Value Disclosure [Abstract]
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedCurrent	180
BusinessCombinationLiabilitiesArisingFromContingenciesAmountRecognizedNonCurrent	$ 1,620