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Balance Sheets (Parenthetical) (USD $)
Sep. 30, 2011
Dec. 31, 2010
Balance Sheets [Abstract]  
Trade accounts receivable, allowance for doubtful accounts$ 6,000$ 3,000
Preferred stock, par value$ 0.01$ 0.01
Preferred stock, shares authorized24,08824,088
Preferred stock, shares issued00
Preferred stock, shares outstanding00
Common stock, par value$ 0.01$ 0.01
Common stock, shares authorized35,000,00035,000,000
Common stock, shares issued21,208,16221,204,162
Common stock, shares outstanding21,208,16221,204,162