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Component: (Network and Table)
Network
40801 - Disclosure - Other Long-Term Assets and Other Income (Schedule of Other Long-Term Assets) (Details)
(http://www.halladorenergy.com/role/DisclosureOtherLongTermAssetsAndOtherIncomeScheduleOfOtherLongTermAssetsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000788965 (http://www.sec.gov/CIK)
Other Long-term Assets and Other Income (in thousands) [Abstract]Period [Axis]
2016-12-31
2015-12-31
Other Long-term Assets and Other Income (in thousands) [Abstract]
 
 
Long-term assets:
 
 
Advance coal royalties
9,296,000  
6,563,000  
Marketable equity securities available for sale, at fair value (restricted)
2,036,000 1
1,763,000 1
Other
2,782,000  
3,090,000  
Other noncurrent assets total
14,114,000  
 
11,416,000  
 
1: Held by Sunrise Indemnity, Inc., our wholly owned captive insurance company.