Business (Details Narrative)	12 Months Ended
Dec. 31, 2015 Number
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of domestic subsidiaries	3
Number of foreign subsidiaries	1

Number of domestic subsidiaries reported by the entity.

No definition available.

Name:	heb_NumberOfDomesticSubsidiaries
Namespace Prefix:	heb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration