Inventories (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory [Line Items]
Raw materials	$ 5,887us-gaap_InventoryRawMaterials	$ 5,662us-gaap_InventoryRawMaterials
Work-in process	2,020us-gaap_InventoryWorkInProcess	2,015us-gaap_InventoryWorkInProcess
Finished products and components	2,076us-gaap_InventoryFinishedGoods	1,723us-gaap_InventoryFinishedGoods
Total	9,983us-gaap_InventoryNet	9,400us-gaap_InventoryNet
Domestic Inventories [Member]
Inventory [Line Items]
Raw materials	3,993	3,548
Work-in process	1,300	1,173
Finished products and components	1,838	1,604
Total	7,131	6,325
Foreign Inventories [Member]
Inventory [Line Items]
Raw materials	1,894	2,114
Work-in process	720	842
Finished products and components	238	119
Total	$ 2,852	$ 3,075

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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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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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