XML 48 R22.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Accounting Policies [Abstract] |
Schedule of activity in asset retirement obligations | Activity in the asset retirement obligation account for the years ended December 31, is as follows:
|  | 2016 |  |  | 2015 |
Balance, beginning |  | $ | 172 |  |  | $ | 166 |
Accretion of liability due to passage of time |  |  | 6 |  |  |  | 6 |
Amortization of asset due to passage of time |  |  | — |  |  |  | — |
Balance, ending |  | $ | 178 |  |  | $ | 172 |

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

X
- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
Name: | us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration