Rendering

Component: (Network and Table)
Network
209 - Disclosure - STOCK COMPENSATION PLANS (Details 1)
(http://www.ameriserv.com/role/StockCompensationPlansDetails1)
TableSchedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000707605 (http://www.sec.gov/CIK)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Range [Axis]Range [Axis]Range [Axis]
Minimum [Member]Maximum [Member]Range [Domain]Range [Domain]Minimum [Member]Maximum [Member]Range [Domain]
Risk-free interest rate
1.56%  
1.73%  
 
1.97%  
2.43%  
2.74%  
 
Expected lives in years
  
P10Y  
P10Y  
  
P10Y  
Expected volatility
  
29.00%  
22.00%  
28.00%  
29.00%  
 
Expected dividend rate
1.35%  
1.81%  
 
1.35%  
1.25%  
1.30%