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Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Statement of Financial Position [Abstract] |  |
Allowance for doubtful accounts | $ 60 | $ 149
Common Stock: |  |
Par value (in dollars per share) | $ 0.001 | $ 0.001
Common stock, shares authorized (in shares) | 50,000,000 | 50,000,000
Common stock, sharse issued (in shares) | 9,163,462 | 9,163,462
Common stock, shares outstanding (in shares) | 9,098,152 | 9,098,152
Treasury stock (in shares) | 94,744 |

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