(4) Union Capital Financing (Detail) (USD $)	1 Months Ended	0 Months Ended	12 Months Ended
	Nov. 30, 2011	Dec. 15, 2009	Mar. 31, 2013	Mar. 31, 2012
Proceeds from other equity		$ 5,000,000
Proceeds from issuance of convertible preferred stock		2,500,000
Series D convertible participating preferred stock stated value (in dollars per share)			$ 1.00	$ 1.00
Series D convertible stock, convertible into common stock and warrants (in shares)		5,319,149
Number of securities called by warrants (in shares)		2,456,272
Amount of financial instruments collectively purchase		735,000
Convertible preferred stock terms of conversion		shares of Series D Preferred Stock issued in the financing have a stated value of $1.00 per share, and are convertible into Common Stock at an initial conversion price of $0.47. The conversion price of the Series D Preferred Stock is subject to weighted-average anti-dilution provisions. Generally, this means that if the Company sells non-exempt securities below the conversion price, the holders' conversion price will be adjusted downwards. Holders of the Series D Preferred Stock are not entitled to special dividends but will be entitled to be paid upon a liquidation, redemption or change of control, the stated value of such shares plus the greater of (a) a 14% accreting liquidation preference, compounding annually, and (b) 3% of the volume weighted average price of the Common Stock outstanding on a fully-diluted basis (excluding the shares issued upon conversion of the Series D Preferred Stock) for the 20 days preceding the event. A consolidation or merger, a sale of all or substantially all of the Company's assets, and a sale of 50% or more of Common Stock would be treated as a change of control for this purpose.	December 15, 2015, holders of the Series D Preferred Stock can require the Company to redeem the Series D Preferred Stock for cash at its stated value plus any accretion thereon ("Put Derivative"). In addition, the Company may be required to redeem the Series D Preferred Stock for cash earlier upon the occurrence of a "Triggering Event." Triggering Events include (i) a failure to timely deliver shares of Common Stock upon conversion of Series D Preferred Stock, (ii) failure to pay amounts due to the holders (after notice and a cure period), (iii) a bankruptcy event with respect to the Company or any of its subsidiaries, (iv) default under other indebtedness in excess of certain amounts, and (v) a breach of representations, warranties or covenants in the documents entered into in connection with the financing. Upon a Triggering Event or failure to redeem the Series D Preferred Stock, the accretion rate on the Series D Preferred Stock will increase to 16.5% per annum. The Company may also be required to pay penalties upon a failure to timely deliver shares of Common Stock upon conversion of Series D Preferred Stock.
Financial terms of management consulting agreement		closing of the financing, UCC became entitled to a closing fee of $325,000, half of which was paid upon the closing and the balance of which was paid in six monthly installments following the closing. The Company also reimbursed UCC for its fees and expenses in the amount of $250,000. Additionally, the Company entered into a management consulting agreement with Union Capital under which Union Capital provides the Company with management advisory services and the Company currently pays Union Capital a fee of $62,500 per year. The management consulting agreement will terminate when the holders of the Series D Preferred Stock no longer have the right to nominate any directors and Union Capital no longer owns at least 20% of the Common Stock purchased by it at closing (assuming conversion of Series Preferred D Stock and exercise of Warrants held by it).
Increase in Senior notes interest rate assuming trading suspension or change in control		4.00%
Series D convertible participating preferred stock par value (in dollars per share)			$ 0.001	$ 0.001
Repayments of Senior Debt	2,000,000
Union Capital Corporation
Amount of expenses agreed to reimbursed		250,000
Closing costs		325,000
Amount of annual management fee payable		$ 62,500
Union Capital Corporation | Minimum
Percentage of minimum threshold limit of ownership interest		20.00%
Series D Preferred Stock
Debt instrument, convertible, conversion price		$ 0.47
Liquidation preference, percentage		14.00%
Weighted average price volume, percentage		3.00%
Number of days preceding event		20 days
Noncontrolling interest, ownership percentage by parent		50.00%
Liquidation preference, increased percentage		16.50%
Series D Preferred Stock | Maximum
Percentage of shares outstanding		25.00%
Series D Preferred Stock | Minimum
Percentage of shares outstanding		15.00%
Warrant Derivative
Number of securities called by warrants (in shares)		2,456,272
Series D convertible participating preferred stock par value (in dollars per share)		$ 0.001