Consolidated Statements of Operations Parenthetical (Parentheticals) (USD $)	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Loss Parenthetical [Abstract]
Tax provision, discontinued operations	$ 0	$ 5,031	$ 0	$ 5,031

Tax benefit in realtion to loss from discontinued operations

No definition available.

Name:	hrt_TaxBenefitDiscontinuedOperations
Namespace Prefix:	hrt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration