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Cash Flow Statement - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Supplemental Cash Flow Elements [Abstract]
Interest paid	$ 6	$ 52
Income taxes paid	2,161	39
Excess tax benefit (deficiency) on stock awards	119	(5)
Capital expenditures	38	24
Capital leases	$ 0	$ 11

X

- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

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X

- Definition

The increase during the period in capital lease obligations due to entering into new capital leases.

+ References

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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

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-Topic 718

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X

- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

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