XML 25 R12.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Prepaid Expenses and Other Current Assets | 3 Months Ended
--- | ---
Mar. 31, 2018
Prepaid Expense and Other Assets [Abstract] |
Prepaid Expenses and Other Current Assets | Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets were comprised of the following:
| March 31, 2018 |  | December 31, 2017
Prepaid insurance | $ | 589 |  |  | $ | 551 |
Prepaid expenses | 1,342 |  |  | 1,112 |
Prepaid income taxes | 1,458 |  |  | 1,382 |
Rail rebate receivables | 952 |  |  | 776 |
Other receivables | 651 |  |  | 28 |
Total prepaid expenses and other current assets | $ | 4,992 |  |  | $ | 3,849 |

X
- Definition Prepaid expenses and other current assets. + References No definition available. + Details
Name: | snd_PrepaidExpensesAndOtherCurrentAssetsTextBlock
Namespace Prefix: | snd_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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