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Debt (Detail) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Convertible debt		$ 772,500
10% convertible note
Debt Instrument [Line Items]
Convertible debt, due date	2012-06
Convertible debt		600,000
8.75% convertible debenture
Debt Instrument [Line Items]
Convertible debt, due date	2012-01
Convertible debt		$ 172,500

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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