XML 39 R22.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Warrants | 12 Months Ended
--- | ---
Dec. 31, 2016
Text Block [Abstract] |
Warrants | 15. Warrants Contemporaneous with the financing transaction in 2011 described in Note 13, the Company issued certain management stockholders warrants to purchase 3,999,998 shares of common stock for a purchase price of $0.0045 per share. The warrants were scheduled to expire 8 years after issuance. The warrants were exercisable upon the achievement of certain triggering events, as defined in the warrant agreements. During the year ended December 31, 2016, management determined that certain performance criteria for the warrants were more likely than not to be met and therefore $348 of total expense was recognized during the year, inclusive of any accelerated expense. This amount has been reflected as an additional component of stock-based compensation expense for the year ended December 31, 2016. No expense was recorded for the years ended December 31, 2015 and 2014. On December 2, 2016, a triggering event, as defined in the warrant agreement had been achieved. The Company had been recognizing expense on these warrants over the expected timeframe until a triggering event, but has accelerated recognition of the remaining $255 of warrant expense through the trigger date.

X
- Definition Warrants disclosure. + References No definition available. + Details
Name: | snd_WarrantsDisclosureTextBlock
Namespace Prefix: | snd_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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