XML 30 R14.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Other Long-Term Assets and Other Income | 12 Months Ended
--- | ---
Dec. 31, 2016
Other Long Term Assets And Other Income [Abstract] |
Other Long Term Assets And Other Income | (8)Other Long-Term Assets and Other Income
﻿ |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |
﻿ |  | 2016 |  |  | 2015
﻿Long-term assets: |  |  |  |  |  |  |
﻿Advance coal royalties |  | $ | 9,296 |  |  | $ | 6,563
﻿Marketable equity securities available for sale, at fair value (restricted)* |  |  | 2,036 |  |  |  | 1,763
﻿Other |  |  | 2,782 |  |  |  | 3,090
﻿ |  | $ | 14,114 |  |  | $ | 11,416
﻿ *Held by Sunrise Indemnity, Inc., our wholly owned captive insurance company. ﻿
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  | 2016 |  |  | 2015 |  |  | 2014
Other income: |  |  |  |  |  |  |  |  |
﻿MSHA reimbursements** |  | $ | 1,753 |  | $ |  |  | $ |
﻿Coal storage fees |  |  |  |  |  | 600 |  |  | 383
﻿Miscellaneous |  |  | 2,209 |  |  | 1,636 |  |  | 1,366
﻿ |  | $ | 3,962 |  | $ | 2,236 |  | $ | 1,749
**See “MSHA Reimbursements” in the MD&A section for a discussion of these amounts. ﻿

X
- Definition Other Long Term Assets and Other Income + References No definition available. + Details
Name: | hnrg_OtherLongTermAssetsAndOtherIncome
Namespace Prefix: | hnrg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | hnrg_OtherLongTermAssetsAndOtherIncomeAbstract
Namespace Prefix: | hnrg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration