Concentrations (Details Textual)	12 Months Ended
Dec. 31, 2014
Concentrations Disclosure [Line Items]
Product Distribution Agreement Term	10 years
Accounts Receivable [Member]
Concentrations Disclosure [Line Items]
Percentage Of Revenue And Receivables From Related Parties	100.00%

It represents the percentage of revenues and receivables from related parties.

No definition available.

Name:	hart_PercentageOfRevenueAndReceivablesFromRelatedParties
Namespace Prefix:	hart_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration