Unsecured Notes Net Debt Discount (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Less long term portion	$ 43,056	$ 39,584
Short term portion	993,508	1,144,375
Convertible Note 15%
Debt Instrument [Line Items]
Unsecured Convertible Notes	1,144,353	1,319,376
Debt discount	(107,789)	(135,417)
Unsecured debt	1,036,564	1,183,959
Less long term portion	43,056	1,144,375
Short term portion	$ 993,508	$ 39,584

Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due within one year (or one business cycle if longer).

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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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-Publisher AICPA

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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