PIPE TRANSACTION - Registration Rights Agreement (Narrative) (Details)	3 Months Ended
Mar. 31, 2015
Equity [Abstract]
Term of agreement	1 year

Registration Rights Agreement, Period of Time before Rights Become Effective

No definition available.

Name:	bios_RegistrationRightsAgreementPeriodofTimebeforeRightsBecomeEffective
Namespace Prefix:	bios_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration