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Consolidated Balance Sheets (Parenthetical) (USD $)
Mar. 31, 2012
Dec. 31, 2011
Accounts receivable, allowance $ 76,000 $ 76,000
Long-term debt, unamortized discount $ 77,000 $ 88,000
Common stock, par value $ 0.02 $ 0.02
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 20,711,026 19,513,132
Common stock, shares outstanding 20,711,026 19,513,132