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Network
029 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - Allowance for doubtful accounts
(http://www.nutelecom.net/role/AllowancefordoubtfulaccountsTable)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000071557 (http://www.sec.gov/CIK)
Allowance for doubtful accounts [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Allowance for doubtful accounts [Abstract]
 
 
Balance at beginning of year
160,000  
60,500  
Additions charged to costs and expenses
63,227  
333,217  
Accounts written off
(180,027) 
(233,717) 
Balance at end of year
43,200  
 
160,000