Note 3 - Restricted Cash and Cash Equivalents and Restricted Investments Available for Sale (Detail) - Gross Unrealized Holding Gains And Losses (USD $) In Thousands, unless otherwise specified	Sep. 30, 2011
Gross unrealized holding gains	$ 18
Gross unrealized holding losses	$ 5

Gross unrealized holding gains for restricted investments.

No definition available.

Name:	ksws_GrossUnrealizedHoldingGainsRestrictedInvestments
Namespace Prefix:	ksws_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant