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Consolidated Balance Sheets (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Allowance for doubtful accounts (in Dollars) $ 429 $ 430
Accumulated depreciation (in Dollars) 18,810 18,239
Accumulated amortization (in Dollars) $ 3,611 $ 3,385
Common stock, par value (in Dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 40,000,000 40,000,000
Common stock, shares issued 23,309,665 23,644,301
Common stock outstanding 23,309,665 23,644,301