Business Acquisition (Purchase Price Of REI) (Details) (Roehrig Engineering, Inc. "REI" [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended
Jun. 17, 2014
Roehrig Engineering, Inc. "REI" [Member]
Business Acquisition [Line Items]
Cash paid at closing, net of cash acquired	$ 14,192
Estimated contingent consideration	650
Total purchase price, net of cash acquired	$ 14,842

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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-Section 50

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