Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000846617 (http://www.sec.gov/CIK)

EMPLOYEE BENEFITS	Period [Axis]
	2016-01-01 - 2016-12-31
EMPLOYEE BENEFITS
Schedule of information about changes in obligations and plan assets of the defined benefit pension plan and the defined benefit plan component of the SERP	Pension Benefits     SERP Benefits       Year Ended December 31,     Year Ended December 31,   (In thousands)   2016     2015     2016     2015   Change in benefit obligation:                                 Benefit obligation at beginning of year   $ 18,515     $ 18,960     $ 2,555     $ 2,457   Service cost     1,153       1,134       176       168   Interest cost     794       706       105       91   Benefits paid and expected expenses     (279 )     (264 )     (112 )     (112 ) Assumption changes and other     661       (2,021 )     280       (49 ) Benefit obligation at end of year   $ 20,844     $ 18,515     $ 3,004     $ 2,555                                     Change in plan assets:                                 Fair value of plan assets at beginning of year   $ 24,562     $ 23,887     $ —     $ —   Actual return on plan assets     1,416       (60 )     —       —   Employer contribution     2,215       999       112       112   Benefits paid and actual expenses     (279 )     (264 )     (112 )     (112 ) Fair value of plan assets at end of year   $ 27,914     $ 24,562     $ —     $ —                                     Funded status at end of year   $ 7,070     $ 6,047     $ (3,004 )   $ (2,555 )
Schedule of amounts recognized in accumulated other comprehensive income	Pension Benefits     SERP Benefits       December 31,     December 31,   (In thousands)   2016     2015     2016     2015   Net actuarial loss   $ 7,874     $ 7,108     $ 800     $ 546   Prior service cost     (715 )     (792 )     —       —   Transition obligation     —       —       32       60   Net amount recognized   $ 7,159     $ 6,316     $ 832     $ 606
Schedule net periodic benefit cost and other amounts recognized in other comprehensive income	Pension Benefits     SERP Benefits       Year Ended December 31,     Year Ended December 31,   (In thousands)   2016     2015     2014     2016     2015     2014   Components of net periodic benefit cost and other amounts recognized in other comprehensive income:                                                 Service cost   $ 1,153     $ 1,134     $ 905     $ 176     $ 168     $ 132   Interest cost     794       706       639       105       91       88   Expected return on plan assets     (1,927 )     (1,838 )     (1,625 )     —       —       —   Amortization of net loss     406       376       27       27       32       —   Amortization of prior service credit     (77 )     (77 )     (77 )     —       —       —   Amortization of transition obligation     —       —       —       28       28       28   Net periodic benefit cost (credit)   $ 349     $ 301     $ (131 )   $ 336     $ 319     $ 248                                                     Net loss (gain)   $ 1,172     $ (123 )   $ 5,099     $ 280     $ (48 )   $ 430   Amortization of net loss     (406 )     (376 )     (27 )     (27 )     (32 )     —   Amortization of prior service credit     77       77       77       —       —       —   Amortization of transition obligation     —       —       —       (28 )     (27 )     (27 ) Total recognized in other comprehensive income   $ 843     $ (422 )   $ 5,149     $ 225     $ (107 )   $ 403
Schedule of average assumptions used to determine benefit obligations and net periodic benefit cost	Pension Benefits     SERP Benefits       December 31,     December 31,       2016     2015     2014     2016     2015     2014   Weighted average assumptions used to determine benefit obligations:                                                 Discount rate     4.05 %     4.30 %     3.90 %     4.01 %     4.20 %     3.80 % Rate of compensation increase     3.00       3.00       3.00       5.00       5.00       5.00   Weighted average assumptions used to determine net periodic benefit cost:                                                 Discount rate     4.30 %     3.90 %     4.90 %     4.20 %     3.80 %     4.70 % Rate of compensation increase     3.00       3.00       3.00       5.00       5.00       5.00   Expected long-term rate of return     7.50       7.50       7.50       —       —       —
Schedule of target allocations for Plan assets	Target Allocation     Percentage of Plan Assets  At December 31,     Weighted-Average Expected Long- term Rate of   Asset Category   2017     2016     2015     Return   Cash Equivalents     0 – 5 %     3.0 %     4.6 %     —   Equity Securities     45 - 65 %     64.0 %     62.2 %     10.0 % Fixed income securities     35 - 55 %     33.0 %     33.2 %     5.0 % Total             100.0 %     100.0 %
Schedule of the Plan's fair value hierarchy for its financial assets measured at fair value on a recurring basis	December 31, 2016:             Fair Value Measurements Using:   (Dollars in thousands)   Carrying Value     Quoted Prices In Active Markets for Identical Assets (Level 1)     Significant Other Observable Inputs  (Level 2)     Significant Unobservable Inputs (Level 3)   Cash and cash equivalents:                         Cash   $ —     $ —     $ —           Short term investment funds     822       —       822           Total cash and cash equivalents     822       —       822           Equities:                                 U.S. large cap     8,950       8,950       —           U.S. mid cap/small cap     3,038       3,038       —           International     5,770       5,770       —           Equities blend     124       124       —           Total equities     17,882       17,882       —           Fixed income securities:                                 Government issues     1,948       1,706       242           Corporate bonds     1,795       —       1,795           Mortgage backed     960       —       960           High yield bonds and bond funds     4,507       —       4,507           Total fixed income securities     9,210       1,706       7,504           Total plan assets   $ 27,914     $ 19,588     $ 8,326                  December 31, 2015             Fair Value Measurements Using:   (Dollars in thousands)   Carrying Value     Quoted Prices In Active Markets for Identical Assets  (Level 1)     Significant Other Observable Inputs  (Level 2)     Significant Unobservable Inputs (Level 3)   Cash and cash equivalents:                         Cash   $ 1,129     $ 1,129     $ —           Short term investment funds     21       —       21           Total cash and cash equivalents     1,150       1,129       21           Equities:                                 U.S. large cap     7,472       7,472       —           U.S. mid cap/small cap     2,259       2,259       —           International     4,390       4,390       —           Equities blend     1,151       1,151       —           Total equities     15,272       15,272       —           Fixed income securities:                                 Government issues     1,329       984       345           Corporate bonds     1,308       —       1,308           Mortgage backed     562       —       562           High yield bonds and bond funds     4,941       —       4,941           Total fixed income securities     8,140       984       7,156           Total plan assets   $ 24,562     $ 17,385     $ 7,177
Summary of payments, which reflect expected future service, expected to be paid	Pension and SERP Payments   Year   (in thousands)   2017   $ 574   2018     677   2019     740   2020     908   2021     1,005   2022-2026     6,476
Summary of status of stock options	(Dollars in thousands, except per share amounts)   Number of Options     Weighted Average Exercise Price   Outstanding, January 1, 2016     23,725     $ 25.25   Exercised     (23,725 )   $ 25.25   Outstanding, December 31, 2016     —
Schedule of summary of activity related to the stock options	Year Ended December 31,   (In thousands)   2016     2015     2014   Intrinsic value of options exercised   $ 115     $ 52     $ 4   Cash received from options exercised     62       80       4   Tax benefit realized from option exercised     —       —       —
Schedule of unvested restricted stock	Shares     Weighted Average Grant-Date Fair Value   Unvested, January 1, 2016     281,076     $ 23.46   Granted     69,309     $ 27.99   Vested     (41,727 )   $ 22.42   Forfeited     (6,667 )   $ 25.95   Unvested, December 31, 2016     301,991     $ 24.59