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6. Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2013
Stockholders Equity Tables  
Changes in consolidated stockholders' equity
    Common Stock Shares     Common Stock Amount     Additional Paid-In Capital     Accumulated Deficit     Total  
                               
Balance at December 31, 2012     13,545,482     $ 8,127     $ 24,604     $ (2,547 )   $ 30,184  
    Common stock option exercise and issued     34,989       21       13       -        34  

    Share-based compensation expense

                36             36  
    Net income                       1,116       1,116  
Balance at September 30, 2013     13,580,471     $ 8,148     $ 24,653     $ (1,431 )   $ 31,370