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Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 Segment | Dec. 31, 2012
Segment Reporting [Abstract] |  |
Number of reportable business segments | 1 |
Revenues from Operations [Abstract] |  |
Frequency control devices - USA | $ 13,797 | $ 15,087
Frequency control devices - Foreign | 12,404 | 14,619
Total consolidated revenues | 26,201 | 29,706
Operating Loss from Operations [Abstract] |  |
Consolidated total operating loss | (4,164) | (1,782)
Interest expense, net | (43) | (89)
Other (expense) income, net | (64) | 27
Other loss | (107) | (62)
Loss Before Income Taxes | (4,271) | (1,844)
Capital Expenditures [Abstract] |  |
Total capital expenditures | 448 | 906
Total Assets [Abstract] |  |
Total assets | 21,263 | 29,593
Frequency control devices [Member] |  |
Operating Loss from Operations [Abstract] |  |
Consolidated total operating loss | (2,480) | (345)
Capital Expenditures [Abstract] |  |
Total capital expenditures | 448 | 505
Total Assets [Abstract] |  |
Total assets | 16,053 | 19,493
General corporate [Member] |  |
Capital Expenditures [Abstract] |  |
Total capital expenditures | 0 | 401
Total Assets [Abstract] |  |
Total assets | 5,210 | 10,100
Unallocated corporate expense [Member] |  |
Operating Loss from Operations [Abstract] |  |
Consolidated total operating loss | $ (1,684) | $ (1,437)

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