Note 16 - Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2013
Note 16 - Benefit Plans (Tables) [Line Items]  
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Net Actuarial Loss (Gain)

  $ 915  

Prior Service Cost

  $ 0  
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
    Years Ended December 31,    
   

2013

   

2012

 
   

(in thousands)

 
                 

Accumulated Benefit Obligations

  $ 25,945     $ 29,202  
                 

Change in Benefit Obligation

               

Benefit Obligation at beginning of year

  $ 29,202     $ 28,527  

Service Cost

           

Interest Cost

    991       1,095  

Plan Amendments

           

Actuarial (Gain) Loss

    (2,288 )     1,269  

Benefits Paid

    (1,960 )     (1,689 )

Benefit Obligation at end of year

  $ 25,945     $ 29,202  
                 

Change in Plan Assets

               

Plan Assets at Fair Value at beginning of year

  $ 19,376     $ 17,659  

Actual Return on Plan Assets

    2,663       1,527  

Company Contributions

    1,749       1,879  

Benefits Paid

    (1,960 )     (1,689 )

Plan Assets at Fair Value at end of year

  $ 21,828     $ 19,376  
                 

Funded Status of the Plan

  $ (4,117 )   $ (9,826 )
                 

Additional Amounts Recognized in the Statement of Financial Position:

               

Long-term Liabilities

  $ (4,117 )   $ (9,826 )
                 

Amounts Recognized in Accumulated Other Comprehensive Loss:

               

Net Actuarial (Loss) Gain, net of tax

  $ (6,387 )   $ (9,952 )
                 

Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Loss:

               

Net Actuarial (Loss) Gain, net of tax

  $ 2,560     $ (679 )

Reversal of Amortization Item:

               

Amortization of Net Loss, net of tax

    1,005       986  

Total Recognized in Other Comprehensive Loss, net of tax

  $ 3,565     $ 307  
Schedule of Net Benefit Costs [Table Text Block]
      Years Ended December 31,    
    2013     2012     2011  
            (in thousands)          
Components of net periodic benefit cost:                      

Service cost

  $     $     $  

Interest cost

    990       1,095       1,276  

Expected return on plan assets

    (1,027 )     (1,303 )     (1,274 )

Amortization of net loss

    1,561       1,517       1,189  
                         

Net periodic benefit cost

  $ 1,524     $ 1,309     $ 1,191  
Schedule of Allocation of Plan Assets [Table Text Block]
   

Plan Assets

at

December 31,

 

Asset Category

 

2013

   

2012

 
   

Actual

   

Target

   

Actual

   

Target

 
                                 

Equity

    64.5 %     60.0 %     59.9 %     60.0 %

Debt securities

    35.5       40.0       40.1       40.0  

Other

                       

Total

    100.0 %     100.0 %     100.0 %     100.0 %
Fair Value of Plan Assets [Table Text Block]
   

Fair Value of Plan Assets at

December 31,

(in thousands)

Fair Value Measurements Using Level 2

(except as noted)

 

Asset Category

 

2013

   

2012

 
                 

Equity Securities

               

Large-Cap Growth

  $ 4,833     $ 3,946  

Large Company Value

    2,031       1,772  

Mid-Cap Growth

    897       753  

Mid-Cap Value

    915       768  

Small Company Growth

    873       774  

Small Company Value

    912       785  

International

    2,604

*

    1,852

*

REIT

    1,016       955  

Fixed Income Securities

               

U.S. Treasuries

    2,525       2,409  

U.S. Govt. Agencies

    2,003       2,333  

Corporate bonds

    2,077       2,093  

International fixed income

    220       332  

Asset-backed securities

    608       255  

Mortgage-backed securities

    314       349  

Total

  $ 21,828     $ 19,376  
Schedule of Expected Benefit Payments [Table Text Block]
        (in thousands)        

2014

 

2015

 

2016

 

2017

 

2018

 

2019-2023

$1,769

 

$1,767

 

$1,789

 

$1,787

 

$1,797

 

$8,907

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
   

2013

   

2012

   

2011

 
   

Number of

Shares

Underlying

Options

   

Weighted

Average

Exercise

Prices

   

Number of

Shares

Underlying

Options

   

Weighted

Average

Exercise

Prices

   

Number of

Shares

Underlying

Options

   

Weighted

Average

Exercise

Prices

 

Outstanding at beginning of year

    2,652     $ 6.19       2,776     $ 6.12       3,271     $ 5.86  

Granted

                98     $ 6.80       60     $ 13.41  

Exercised

    (859 )   $ 4.67       (92 )   $ 4.46       (536 )   $ 5.37  

Expired

                                   

Forfeited

    (7 )   $ 12.81       (130 )   $ 6.42       (19 )   $ 5.33  

Outstanding at end of year

    1,786     $ 6.89       2,652     $ 6.19       2,776     $ 6.12  

Exercisable at end of year

    1,786     $ 6.89       2,206     $ 6.31       1,228     $ 6.51  
                                                 

Weighted-average fair value of options granted

                        $ 3.76             $ 7.48  
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block]
    Aggregate Intrinsic Value   
    2013     2012     2011  
            (in thousands)          

Options outstanding as of December 31

  $ 9,814     $ 2,045     $ 3,770  

Options exercisable as of December 31

  $ 9,814     $ 1,660     $ 1,716  

Options exercised during the year

  $ 5,430     $ 224     $ 4,365  
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
       

Options Outstanding and Exercisable

   

Range of

Exercise Prices

 

Number

Outstanding

at 12/31/2013

 

Weighted Average

Remaining

Contractual Life (years)

 

Weighted Average

Exercise Prices

 
$2.22 to

$4.70

    420,097  

5.9

  $ 4.50  
$4.71 to

$6.00

    34,000  

4.6

  $ 5.13  
$6.01 to

$7.55

    1,157,502  

6.8

  $ 6.99  
$7.56 to

$10.58

    44,200  

3.6

  $ 8.65  
$10.59 to

$15.88

    130,000  

5.8

  $ 13.59  
          1,785,799            
Schedule of Nonvested Share Activity [Table Text Block]
   

Year Ended

December 31, 2013

   

Weighted Average

Grant-Date

Fair Value

 

Nonvested options as of January 1, 2013

    446,671     $ 3.21  

Granted

           

Vested

    (466,671 )   $ 3.21  

Forfeited

           

Nonvested options as of December 31, 2013

           
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

Date of Restricted

Stock Award

 

Grant Date

Fair Value

   

Restricted Stock Issued

and Outstanding

as of December 31, 2013

 

Date of

Vesting

February 28, 2013

  $ 7.97       25,000  

February 28, 2016

July 1, 2013

  $ 9.08       33,036  

January 1, 2014

              58,036    
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
   

2013

(in shares)

   

Wgt. Avg.

Grant Date

Fair Value

 

Outstanding at beginning of year

    420,698     $ 7.19  

Granted

    58,036     $ 8.60  

Vested

           

Expired

           

Forfeited

           

Outstanding at end of year

    478,734     $ 7.36  
Benefit Obligations [Member]
 
Note 16 - Benefit Plans (Tables) [Line Items]  
Schedule of Assumptions Used [Table Text Block]
   

Years Ended December 31,

 
   

2013

   

2012

 

Assumptions

               
                 

Weighted average assumptions used to determine benefit obligations at end of year

               

Discount Rate

    4.36 %     3.47 %

Long-Term Rate of Return

    7.25 %     7.25 %

Salary Scale up to age 50

 

N/A

   

N/A

 

Salary Scale over age 50

 

N/A

   

N/A

 
Net Periodic Benefit Cost [Member]
 
Note 16 - Benefit Plans (Tables) [Line Items]  
Schedule of Assumptions Used [Table Text Block]
   

Years Ended December 31,

 
   

2013

   

2012

   

2011

 

Weighted average assumptions used to determine net periodic benefit cost at beginning of year

                       

Discount Rate

    3.47 %     4.01 %     5.08 %

Long-Term Rate of Return

    7.25 %     7.25 %     7.25 %

Salary Scale up to age 50

 

N/A

   

N/A

   

N/A

 

Salary Scale over age 50

 

N/A

   

N/A

   

N/A