Segment and Related Information, Reconciliation of Segment Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Identifiable assets by business segment [Abstract]
Identifiable assets	$ 117,508	$ 123,765
UNITED STATES
Identifiable assets by business segment [Abstract]
Identifiable assets	99,937	107,149
Other Countries [Member]
Identifiable assets by business segment [Abstract]
Identifiable assets	$ 17,571	$ 16,616

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized, excluding assets of discontinued operations. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

No definition available.

Name:	par_IdentifiableAssets
Namespace Prefix:	par_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant