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Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Accounts receivable-trade, net allowance for doubtful accounts (in Dollars) $ 36,000 $ 112,000
OTHER INTANGIBLES, net of accumulated amortization (in Dollars) $ 590,000 $ 582,000
Preferred stock par value (in Dollars per share) $ 0.10 $ 0.10
Preferred stock, shares authorized 20,000,000 20,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value (in Dollars per share) $ 0.0024 $ 0.0024
Common stock, shares authorized 25,000,000 25,000,000
Common stock, shares issued 11,156,065 11,156,065
Common stock, shares outstanding 10,162,442 10,162,442
Treasury stock shares 993,623 993,623