Business Acquisition (Narrative) (Details) (Roehrig Engineering, Inc. "REI" [Member], USD $)	0 Months Ended	12 Months Ended
	Jun. 17, 2014	Sep. 27, 2014	Jun. 17, 2014
Business Acquisition [Line Items]
Total estimated purchase price	$ 14,842,000
Cash paid	14,192,000
Estimated contingent consideration	650,000
Estimated earn-out		1,000,000
Escrow Deposit			2,000,000
Identifiable assets acquired and the liabilities assumed			9,600,000
Minimum [Member]
Business Acquisition [Line Items]
Estimated earn-out, 2015		1,000,000
Maximum [Member]
Business Acquisition [Line Items]
Estimated earn-out		2,000,000
Estimated earn-out, 2015		$ 700,000