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Discontinued Operations - Schedule of Financial Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Revenues		$ 19,055	$ 19,560
Gross profit		6,187	6,638
Net loss		(10,802)	(29,599)
U.S. Seismic Systems, Inc [Member]
Loss on deconsolidation	$ (401)	(401)
U.S. Seismic Systems, Inc [Member] | Discontinued Operations [Member]
Revenues		163	556
Gross profit		(68)	(1,043)
Net loss		(772)	$ (19,140)
Loss on deconsolidation		(401)
Loss from discontinued operations, net of income taxes		$ (1,173)	$ (19,140)

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The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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