6. Fair Value Measurements (Details 2) (USD $) In Thousands, unless otherwise specified	6 Months Ended
Jun. 30, 2014
Fair Value Measurements Tables
Acquistion Related Contingent Consideration at December 31, 2013	$ 51
Cash payments	(37)
Change in fair value	3
Additions	211
Acquistion Related Contingent Consideration at March 31, 2014	$ 228

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration