Other Current Liabilities - Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012
TQM [Member]
Business Acquisition [Line Items]
Contingent Consideration Paid	$ 2,000
GW Smith [Member]
Business Acquisition [Line Items]
Contingent Consideration Paid	$ 1,000

Amount of cash paid to former stockholders to settle hold-back contingent consideration liability.

No definition available.

Name:	kwr_BusinessAcquisitionContingentConsiderationActualCashPayment
Namespace Prefix:	kwr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration