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Component: (Network and Table)
Network
00000061 - Disclosure - Asset Retirement Obligations (Details)
(http://intisoid.com/role/AssetRetirementObligationsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001038277 (http://www.sec.gov/CIK)
Asset Retirement Obligation Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Asset Retirement Obligation Disclosure [Abstract]
 
 
Asset Retirement Obligation [Roll Forward]
 
 
Obligation for lease disposal cost, balance at beginning of period
459,711  
450,630  
Obligation for lease disposal cost, increase in lease disposal costs
0  
0  
Obligation for lease disposal cost, accretion expense / amortization expense
9,263  
9,081  
Obligation for lease disposal cost, balance at end of period
468,974  
 
459,711