Business combination effect of movements exchange rates.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of assets acquired at the acquisition date.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Business Combination - Schedule of Estimated Fair Values of Assets acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Sep. 30, 2016	Jun. 17, 2015
Business Acquisition [Line Items]
Goodwill	$ 2,725	$ 2,863
IDchecker
Business Acquisition [Line Items]
Current assets			$ 620
Property, plant and equipment			42
Intangible assets			3,570
Assets acquired			4,232
Current liabilities			(476)
Other liabilities			(810)
Liabilities assumed			(1,286)
Fair value of net assets acquired			2,946
Total consideration paid			5,819
Effect of movements in exchange rates as of March 31, 2017	$ (148)
Goodwill			$ 2,873