Note 1 - Basis of Presentation (Details Textual)	Sep. 30, 2017
Number of Wholly Owned Subsidiaries	3

Represents the number of wholly owned subsidiaries.

No definition available.

Name:	tis_NumberOfWhollyOwnedSubsidiaries
Namespace Prefix:	tis_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant