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Cash and Cash Equivalents
9 Months Ended
Apr. 30, 2013
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents
NOTE 2 - Cash and Cash Equivalents
The Company considers all highly liquid investments purchased with original maturities of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents include cash held in checking and money market accounts. The Company periodically invests its excess cash in money market funds and U.S. Treasury Bills. The Company's cash and cash equivalents are placed with high credit quality financial institutions. The Company generally classifies its investment portfolio not otherwise qualifying as cash and cash equivalents as available-for-sale securities. Available-for-sale securities are reported at fair value, with unrealized gains and losses reported as a component of stockholders' equity and comprehensive income. Unrealized losses are charged against income when a decline in the fair market value of an individual security is determined to be other than temporary. Realized gains and losses on investments are included in interest income.