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Consolidated Quarterly Data
12 Months Ended
Dec. 31, 2011
Consolidated Quarterly Data [Abstract]  
Consolidated Quarterly Data
19.  
Consolidated Quarterly Data (Unaudited)

   
2011
 
    Q1   Q2   Q3   Q4 
Net Sales
 $172,591  $201,259  $186,990  $193,158 
Gross Profit
 $71,931  $83,468  $80,253  $83,529 
Net Earnings
 $5,866  $5,855  $9,728  $11,264 
Basic Earnings per Share
 $0.31  $0.31  $0.52  $0.60 
Diluted Earnings per Share
 $0.30  $0.30  $0.50  $0.59 

   
2010
 
    Q1   Q2   Q3   Q4 
Net Sales
 $150,106  $166,137  $168,637  $182,789 
Gross Profit
 $63,760  $71,543  $71,862  $77,162 
Net Earnings
 $4,091  $6,175  $7,526  $17,012 
Basic Earnings per Share
 $0.22  $0.33  $0.40  $0.91 
Diluted Earnings per Share
 $0.21  $0.32  $0.39  $0.89 
 
The summation of quarterly data may not equate to the calculation for the full fiscal year as quarterly calculations are performed on a discrete basis.
 
Regular quarterly dividends aggregated $0.68 per share in 2011, or $0.17 each quarter, and $0.59 per share in 2010, or $0.14 per share for the first three quarters of 2010 and $0.17 for the fourth quarter of 2010.