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Carrying Amounts and Fair Values of Company's Financial Instruments (Detail) (USD $)	Jun. 30, 2014	Mar. 31, 2014
Assets
Assets, Fair Value Disclosure	$ 504,106
Liabilities
Financial Liabilities Fair Value Disclosure	2,521,451	2,354,624
Fair Value, Inputs, Level 1
Assets
Assets, Fair Value Disclosure	257,364
Liabilities
Financial Liabilities Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2
Assets
Assets, Fair Value Disclosure	246,742
Liabilities
Financial Liabilities Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3
Assets
Assets, Fair Value Disclosure	0
Liabilities
Financial Liabilities Fair Value Disclosure	2,521,451	2,354,624
Money Market Funds
Assets
Assets, Fair Value Disclosure	96,424
Money Market Funds | Fair Value, Inputs, Level 1
Assets
Assets, Fair Value Disclosure	0
Money Market Funds | Fair Value, Inputs, Level 2
Assets
Assets, Fair Value Disclosure	96,424
Money Market Funds | Fair Value, Inputs, Level 3
Assets
Assets, Fair Value Disclosure	0
Equity Securities
Assets
Assets, Fair Value Disclosure	257,364
Equity Securities | Fair Value, Inputs, Level 1
Assets
Assets, Fair Value Disclosure	257,364
Equity Securities | Fair Value, Inputs, Level 2
Assets
Assets, Fair Value Disclosure	0
Equity Securities | Fair Value, Inputs, Level 3
Assets
Assets, Fair Value Disclosure	0
Warranty Liability
Liabilities
Financial Liabilities Fair Value Disclosure	2,384,629	2,354,624
Warranty Liability | Fair Value, Inputs, Level 1
Liabilities
Financial Liabilities Fair Value Disclosure	0	0
Warranty Liability | Fair Value, Inputs, Level 2
Liabilities
Financial Liabilities Fair Value Disclosure	0	0
Warranty Liability | Fair Value, Inputs, Level 3
Liabilities
Financial Liabilities Fair Value Disclosure	2,384,629	2,354,624
Holdback Liability
Liabilities
Financial Liabilities Fair Value Disclosure	136,822
Holdback Liability | Fair Value, Inputs, Level 1
Liabilities
Financial Liabilities Fair Value Disclosure	0
Holdback Liability | Fair Value, Inputs, Level 2
Liabilities
Financial Liabilities Fair Value Disclosure	0
Holdback Liability | Fair Value, Inputs, Level 3
Liabilities
Financial Liabilities Fair Value Disclosure	136,822
Mutual Funds
Assets
Assets, Fair Value Disclosure	150,318
Mutual Funds | Fair Value, Inputs, Level 1
Assets
Assets, Fair Value Disclosure	0
Mutual Funds | Fair Value, Inputs, Level 2
Assets
Assets, Fair Value Disclosure	150,318
Mutual Funds | Fair Value, Inputs, Level 3
Assets
Assets, Fair Value Disclosure	$ 0

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

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- Definition

Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

+ References

No definition available.

+ Details

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