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Note 8 - Employee Benefit Plans (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 3 Months Ended 6 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Mar. 31, 2012
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Restricted Stock [Member]
Jun. 30, 2012
Restricted Stock Units (RSUs) [Member]
Awarded to Outside Directors [Member]
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
Long Term Incentive Program [Member]
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
Special Bonus - Acquisition LDI [Member]
Mar. 31, 2012
Restricted Stock Units (RSUs) [Member]
Jun. 30, 2012
Post Retirement Health Care and Life Benefits [Member]
Jun. 30, 2011
Post Retirement Health Care and Life Benefits [Member]
Jun. 30, 2012
Post Retirement Health Care and Life Benefits [Member]
Jun. 30, 2011
Post Retirement Health Care and Life Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (in Dollars)                     $ 111 $ 176 $ 222 $ 352
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number           998,143                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period             31,264 129,000 45,000 174,000        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) $ 3.14 $ 6.40                        
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition (in Dollars) 98   1,114                      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years 5 years 5 years                      
Common Stock, Shares Authorized 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000                  
Treasury Stock, Shares, Retired       1,414,379                    
Stock Issued During Period, Shares, Period Increase (Decrease)       1,414,379                    
Treasury Stock, Retired, Cost Method, Amount (in Dollars)       $ 7,132