SHELF REGISTRATION STATEMENT (Details) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 18, 2013
SHELF REGISTRATION STATEMENT [Abstract]
Shelf registration, authorized proceeds	$ 200
Shelf Registration, selling stockholders, saleable shares	12,682,831
Shelf Registration, selling stockholders, additional sellable shares upon exercise of warrants	3,400,945

Represents the value that can be raised by the shelf registration, in one or more transations, for the sale of common stock, preferred stock, debt securities, warrants and units.

No definition available.

Name:	bios_ShelfRegistrationAuthorizedProceeds
Namespace Prefix:	bios_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant