Future Minimum Lease Payments under Capital Leases (Detail) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Schedule of Capital Lease Obligations [Line Items]
2012	$ 89,813
2013	175,548
2014	87,119
Total minimum lease payments	352,481
Less amount represented by interest	(34,299)
Less current portion	(154,989)	(149,253)
Capital lease obligation, net of current portion	$ 163,193	$ 240,928

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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- Definition

Amount necessary to reduce net minimum lease payments to present value for capital leases.

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