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NOTE 3 - INVESTMENTS AND FAIR VALUE MEASUREMENTS (Details) - Available-for-sale Securities
$ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
Debt Securities, Available-for-sale [Abstract]  
Corporate debt securities , Amortized Cost (2) $ 4,334
Corporate debt securities, Gross Unrealized Gains 21 [1],[2]
Corporate debt securities, Gross Unrealized Losses (99) [1],[2]
Corporate debt securities, Aggregate Estimated Fair Value $ 4,256
[1] At December 31, 2018, none of these securities were classified as cash and cash equivalents on the Company's balance sheet.
[2] Unrealized gains and losses on available-for-sale securities are included as a component of comprehensive loss. At December 31, 2018, there were 26 securities in an unrealized gain position and there were 32 securities in an unrealized loss position. These unrealized losses were less than $25 individually and $170 in the aggregate. These securities have not been in a continuous unrealized gain or loss position for more than 12 months. The Company does not intend to sell these investments and it is not more likely than not that the Company will be required to sell these investments before recovery of their amortized cost basis, which may be at maturity. The Company reviews its investments to identify and evaluate investments that have an indication of possible other-than-temporary impairment. Factors considered in determining whether a loss is other-than-temporary include the length of time and extent to which fair value has been less than the cost basis, the financial condition and near-term prospects of the investee, and the Company's intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value.