Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Awards and Per Share Information - Additional Information (Detail)

v2.4.0.8
Stock-Based Awards and Per Share Information - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Compensation cost related to stock options $ 310,000 $ 368,000
Net impact of share based compensation expense to earnings per basic share $ (0.01) $ (0.01)
Net impact of share based compensation expense to earnings per diluted share $ (0.01) $ (0.01)
Total unrecognized compensation cost $ 2,200,000  
Unrecognized share based compensation cost to be recognized over weighted-average period 1 year 6 months  
Outstanding stock options and warrants excluded from diluted loss per share 5,998,000 5,060,000
Annual stock dividend policy for 2014 2.00%  
Dividends declared, date of record Mar. 14, 2014  
Two Thousand Two Stock Incentive Plan.
   
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Plan expiration date May 05, 2019  
Common stock authorized for issuance under the 2002 Plan 7,750,000  
Common stock issued pursuant to options exercised 2,957,000  
Common stock shares reserved for future issuance 4,400,000  
Options available for future grant 393,000