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Note 14 - Foreign Revenues and Operations (Details Textual) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Assets | $ 22,704,000 | $ 26,173,000
INDIA |  |
Assets, Noncurrent | 183,000 | 191,000
Foreign [Member] |  |
Assets | 648,000 | 501,000
Liabilities | $ 526,000 | $ 435,000

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