Commitments and Contingencies (Lease Narrative) (Details) (USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Commitments And Contingencies Lease Narrative Details
Cost of equipment under capital leases	$ 704,000	$ 987,000
Accumulated depreciation of equipment under capital leases	704,000	961,000
Net rent expense	$ 636,000	$ 708,000

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735

Name:	us-gaap_CapitalLeasedAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant