INVENTORIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
INVENTORIES
Parts and raw materials	$ 23,220	$ 21,573
Work-in-process	2,953	2,924
Finished goods	3,369	4,403
Inventory, gross	29,542	28,900
Less reserves	(3,544)	(3,529)
Inventories, net	$ 25,998	$ 25,371

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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