The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence.

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Investments - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended
Investments - Additional Information (Detail) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Aug. 31, 2010 Runa Inc.,	Mar. 31, 2013 Runa Inc.,
Schedule of Equity Method Investments [Line Items]
Conversion of Runa Inc. promissory notes into equity shares			$ 1,300,000	$ 1,300,000
Percentage of equity interest ownership				10.00%
Promissory notes		1,100,000			104,987
Impairment of investment			543,220
Sale of investment in equity method investee	1,452,944	937,866
Gain on sale of investment in equity method investee	$ 1,292,168	$ 749,897