Rendering

Component: (Network and Table)
Network
40102 - Disclosure - Summary Of Significant Accounting Policies (Schedule Of Warranty) (Details)
(http://www.commsystems.com/role/DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfWarrantyDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000022701 (http://www.sec.gov/CIK)
Summary Of Significant Accounting Policies [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Summary Of Significant Accounting Policies [Abstract]
 
 
Beginning Balance
554,000  
434,000  
Amounts charged to expense
147,000  
231,000  
Actual warranty costs paid
(101,000) 
(111,000) 
Ending balance
600,000  
 
554,000