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Employee Benefit Plans (Tables)
12 Months Ended
Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]  
Schedule of summary of employee benefits charged to operating expenses
(in thousands)   2014     2013     2012  
Payroll taxes   $ 1,081     $ 1,106     $ 1,127  
Medical plans     1,974       1,915       1,772  
401(k) match     310       309       298  
Pension plan     960       1,173       1,224  
Profit-sharing     201       118       58  
Other     122       219       317  
                         
Total employee benefits   $ 4,648     $ 4,840     $ 4,796  
Schedule of obligations and funded status

(in thousands)

  2014     2013  
             
Change in projected benefit obligation:                
Balance, January 1   $ 14,852     $ 15,342  
Service cost     981       1,174  
Interest cost     732       646  
Actuarial gain     3,813       (1,991 )
Benefits paid     (401 )     (319 )
Balance, December 31   $ 19,977     $ 14,852  
                 
Change in plan assets:                
Fair value, January 1   $ 13,532     $ 11,707  
Actual return on plan assets     1,118       2,220  
Employer contribution     725       0  
Expenses paid     (41 )     (76 )
Benefits paid     (401 )     (319 )
Fair value, December 31   $ 14,933     $ 13,532  
Funded status at end of year   $ (5,044 )   $ (1,320 )
Accumulated benefit obligation   $ 16,595     $ 12,298  
Schedule of components of net pension cost
(in thousands)   2014     2013     2012  
Service cost—benefits earned during the year   $ 981     $ 1,174     $ 1,168  
Interest costs on projected benefit obligations     732       646       667  
Expected return on plan assets     (872 )     (797 )     (776 )
Expected administrative expenses     40       40       40  
Amortization of prior service cost     79       79       79  
Amortization of unrecognized net loss     0       31       46  
Net periodic pension expense   $ 960     $ 1,173     $ 1,224  
Schedule of amounts not yet reflected in net periodic benefit cost and included in accumulated other comprehensive income (loss), including amounts recognized in other comprehensive income
(in thousands)   2014     2013  
Prior service costs   $ (443 )   $ (522 )
Net accumulated actuarial net (loss) gain     (2,008 )     1,560  
Accumulated other comprehensive (loss) gain     (2,451 )     1,038  
Net periodic benefit cost in excess of cumulative employer contributions     (2,593 )     (2,358 )
Net amount recognized at December 31, balance sheet   $ (5,044 )   $ (1,320 )
Net (loss) gain arising during period   $ (3,568 )   $ 3,378  
Prior service cost amortization     79       79  
Amortization of net actuarial loss     0       31  
Total recognized in other comprehensive (loss) income   $ (3,489 )   $ 3,488  
Total recognized in net periodic pension cost and other comprehensive (loss) income   $ 4,449     $ (2,315 )
Schedule of assumptions utilized to determine benefit obligations and to determine pension expense
    2014    2013    2012 
Determination of benefit obligation at year end:                        
Discount rate     4.25 %     5.00 %     4.25 %
Annual rate of compensation increase     3.78 %     3.73 %     3.61 %
Determination of pension expense for year ended:                        
Discount rate for the service cost     5.00 %     4.25 %     4.75 %
Annual rate of compensation increase     3.73 %     3.61 %     4.50 %
Expected long-term rate of return on plan assets     7.00 %     7.00 %     7.00 %
Schedule of fair value of the Company's pension plan assets, by asset category
          Fair Value Measurements  
          Quoted Prices              
          in Active              
          Markets for     Other     Significant  
          Identical     Observable     Unobservable  
          Assets     Inputs     Inputs  
(in thousands)   Fair Value     (Level 1)     (Level 2)     (Level 3)  
December 31, 2014                                
Cash equivalents   $ 1,937     $ 1,937     $ 0     $ 0  
Equity securities:                                
U.S. large-cap (a)     7,252       7,252       0       0  
U.S. mid-cap (b)     921       921       0       0  
U.S. small-cap (c)     1,131       1,131       0       0  
International (d)     1,895       1,895       0       0  
Real estate (e)     486       486       0       0  
Commodities (f)     264       264       0       0  
Fixed income securities:                                
U.S. gov't agency obligations (g)     1,047       0       1,047       0  
Total   $ 14,933     $ 13,886     $ 1,047     $ 0  
December 31, 2013                                
Cash equivalents   $ 675     $ 675     $ 0     $ 0  
Equity securities:                                
U.S. large-cap (a)     6,506       6,506       0       0  
U.S. mid-cap (b)     820       820       0       0  
U.S. small-cap (c)     1,151       1,151       0       0  
International (d)     2,016       2,016       0       0  
Real estate (e)     387       387       0       0  
Commodities (f)     319       319       0       0  
Fixed income securities:                                
U.S. gov't agency obligations (g)     1,450       0       1,450       0  
Corporate investment grade (g)     209       0       209       0  
Total   $ 13,533     $ 11,874     $ 1,659     $ 0  

 

(a) This category is comprised of low-cost equity index funds not actively managed that track the S&P 500.
(b) This category is comprised of low-cost equity index funds not actively managed that track the MSCI U.S. mid-cap 450.
(c) This category is comprised of actively managed mutual funds.
(d) At December 31, 2014 and 2013, 31% and 32%, respectively, of this category is comprised of low-cost equity index funds not actively managed that track the MSCI EAFE.
(e) This category is comprised of low-cost real estate index exchange traded funds.
(f) This category is comprised of exchange traded funds investing in agricultural and energy commodities.
(g) This category is comprised of individual bonds.
Schedule of future benefit payments expected to be paid
Year   Pension benefits  
(in thousands)      
2015   $ 514  
2016     539  
2017     598  
2018     626  
2019     648  
2020 to 2024     4,784