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Credit Facility (Tables)
3 Months Ended
Jun. 30, 2012
Debt Disclosure [Abstract]  
Summary of activity on the Bank of America, N.A. line of credit
    Principal  
Balance at March 31, 2012:   $ 1,700,000  
Borrowings     -  
Repayments     (225,000 )
Balance at June 30, 2012:   $ 1,475,000