BUSINESS ACQUISITIONS AND GOODWILL - Pro Forma Earnings (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Cantech Acquisition
Disclosure of detailed information about business combination [line items]
Revenue	$ 64,575
Net earnings	$ 1,822
Powerband Acquisition
Disclosure of detailed information about business combination [line items]
Revenue		$ 27,663
Net earnings		$ 444

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

No definition available.

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The profit (loss) of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Profit (loss)]

+ References

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The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue]

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