Note 3 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2016	Sep. 30, 2015
Minimum [Member]
Period Of Warranty On Products	1 year
Payment Terms, Severance Compensation	1 year
Maximum [Member]
Payment Terms, Severance Compensation	2 years
Key Executives [Member]
Potential Severance Costs	$ 1,911
Short Term Investment Minimum		$ 2,000

Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios, and adherence to certain clauses which must be met in order to avoid default. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

No definition available.

Name:	kool_ShortTermInvestmentMinimum
Namespace Prefix:	kool_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant