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4. Line of Credit
6 Months Ended
Jun. 30, 2012
Debt Disclosure [Abstract]  
4. Line of Credit

In November 2011, the Company secured a line of credit that provides a maximum borrowing of $500,000 and which matures on November 16, 2012.  The credit line bears interest at 2.25% and is collateralized by a $500,000 certificate of deposit.  Outstanding borrowings under the credit line totaled $139,695 as of June 30, 2012 and $300,000 as of December 31, 2011.