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Deferred Revenue (Details Textual) (Nonsoftware License Arrangement [Member], Stem Cell Therapeutics [Member], USD $)	12 Months Ended
	Dec. 31, 2012
Nonsoftware License Arrangement [Member] | Stem Cell Therapeutics [Member]
Deferred Revenue (Textual) [Abstract]
Number of year up front license fee being amortized	12 years
Unamortized amount of deferred revenue	$ 123,000
Deferred Revenue, Prepaid orders for products	$ 31,000

X

- Definition

Deferred revenue prepaid orders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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Namespace Prefix:	stem_
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Balance Type:	na
Period Type:	duration

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- Definition

Deferred revenue unamortized amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	stem_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Deferred revenue upfront license fee amortization period.

+ References

No definition available.

+ Details

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Namespace Prefix:	stem_
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