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Interest Rate Swap Agreements (Detail Textuals) (Interest Rate Swap, USD $) | 0 Months Ended | 1 Months Ended |  |  |
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Jun. 04, 2012 | Jul. 30, 2012 | Mar. 31, 2014 Swap | Mar. 31, 2013 | Mar. 31, 2012
Interest Rate Swap |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Number of interest rate swap agreements |  |  | 2 |  |
Fixed rate paid | 1.00% | 0.87% |  |  |
Interest rate swap period | 5 years | 5 years |  |  |
Description of rate for the variable rate of the interest rate | 1-month LIBOR rate | 1-month LIBOR rate |  |  |
Derivative notional amount | $ 25,000,000 | $ 25,000,000 | $ 50,000,000 | $ 50,000,000 |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Average fixed interest rate related to the group of interest rate derivatives. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the interest rate derivative, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 + Details
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