XML 112 R93.htm IDEA: XBRL DOCUMENT v3.19.1
Stock-Based Compensation Plans (Additional Information) (Details) - USD ($)
12 Months Ended
May 01, 2012
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cash used to settle stock based compensation transactions   $ 848,000 $ 902,000 $ 373,000
Cash received from exercise of stock options   $ 218,000 100,000 $ 1,300,000
Performance period   5 years 4 months   5 years 3 months 18 days
Percentage of total compensation   4.00%    
Stock Option and Incentive Plan 2003 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares of stock reserved and available for issuance 1,200,000.0      
Stock Option and Incentive Plan 2012 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation, option granted, contractual life   10 years    
Stock based compensation, vesting period   5 years    
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value of share based awards   $ 8,000 0 $ 16,000
Share-based compensation   10,000 20,000 30,000
Tax benefit from share based compensation   50,000 21,000 36,000
Unrecognized compensation cost for nonvested stock options   $ 14,000    
Unrecognized compensation cost, recognition period   2 years 9 months    
Total intrinsic value of options exercised   $ 395,000 300,000 2,500,000
Stock Options [Member] | SBM Financial, Inc. [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Tax benefit from share based compensation   0 21,000 378,000
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value of share based awards   887,000 808,000 0
Share-based compensation   263,000 124,000 0
Tax benefit from share based compensation   57,000 27,000 0
Unrecognized compensation cost related to nonvested shares   $ 1,090,000    
Granted   19,695    
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value of share based awards   $ 753,000 686,000 900,000
Share-based compensation   916,000 762,000 703,000
Tax benefit from share based compensation   197,000 164,000 246,000
Unrecognized compensation cost related to nonvested shares   $ 531,000    
Granted   17,033    
Management Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price as a percentage of fair market value on the date of grant   0.00%    
Grant date fair value of share based awards   $ 139,000 111,000 128,000
Share-based compensation   104,000 97,000 102,000
Tax benefit from share based compensation   22,000 21,000 36,000
Cash received from issuance of share based awards   232,000 180,000 241,000
Unrecognized compensation cost related to nonvested shares   $ 71,000    
Granted   9,372    
Management Stock Purchase Plan [Member] | Interest and Other Liabilities [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cash received from issuance of share based awards   $ 384,000 421,000  
Long-Term Performance Share Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation   291,000 370,000 1,080,000
Tax benefit from share based compensation   63,000 80,000 378,000
Total intrinsic value of options exercised   $ 663,000 697,000 502,000
Performance period   3 years    
Unrecognized compensation cost related to nonvested shares   $ 314,000    
Granted   14,886    
Deferred Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value of share based awards   $ 155,000 118,000 111,000
Share-based compensation   106,000 97,000 81,000
Tax benefit from share based compensation   $ 23,000 $ 21,000 $ 28,000
Percentage of total compensation   10.00%    
Percentage vested on 65th birthday   100.00%    
Qualified Stock Options [Member] | Stock Option and Incentive Plan 2012 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price as a percentage of fair market value on the date of grant 100.00%      
Nonqualified Stock Options [Member] | Stock Option and Incentive Plan 2012 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price as a percentage of fair market value on the date of grant 85.00%