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Consolidated Statements of Stockholders' Equity (USD $)
In Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Beginning balance at Dec. 31, 2012 $ 53,896 $ 70 $ 913 $ 23 $ 52,890
Beginning balance, shares at Dec. 31, 2012   7,017      
Common stock issued on exercise of options, shares   24      
Common stock issued on exercise of options 204 0 204 0 0
Share based compensation expense, net of tax, Shares   0      
Share based compensation expense, net of tax 183 0 183 0 0
Excess tax benefit of stock option exercises 280 0 280 0 0
Cash dividends on common stock (912) 0 0 0 (912)
Unrealized holding gains (losses) on marketable securities, net of tax (4) 0 0 (4)  
Net loss (2,549) 0 0 0 (2,549)
Ending balance at Mar. 31, 2013 51,098 70 1,580 19 49,429
Ending balance, shares at Mar. 31, 2013   7,041      
Beginning balance at Dec. 31, 2013 72,553 72 5,781 (26) 66,726
Beginning balance, shares at Dec. 31, 2013   7,165      
Common stock issued on exercise of options, shares   8      
Common stock issued on exercise of options 76 0 76 0 0
Share based compensation expense, net of tax, Shares   0      
Share based compensation expense, net of tax 331 0 331 0 0
Excess tax benefits from share-based compensation 15 0 15 0 0
Cash dividends on common stock (1,291) 0 0 0 (1,291)
Unrealized holding gains (losses) on marketable securities, net of tax (11) 0 0 (11) 0
Net loss (3,583) 0 0 0 (3,583)
Ending balance at Mar. 31, 2014 $ 68,090 $ 72 $ 6,203 $ (37) $ 61,852
Ending balance, shares at Mar. 31, 2014   7,173