XML 32 R45.htm IDEA: XBRL DOCUMENT v2.4.0.6

Fair Value (Details Textual) (USD $) In Millions, unless otherwise specified	Oct. 31, 2012	Apr. 30, 2012
Estimated Fair Value of Warrants	$ 0.3	$ 0.6

X

- Definition

The estimated fair value of warrants.

+ References

No definition available.

+ Details

Name:	csbr_EstimatedFairValueOfWarrants
Namespace Prefix:	csbr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant