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NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended
Jun. 30, 2018
Apr. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]          
Aggregate Value of Common Stock and Other Securities Registered for Sale   $ 175,000      
Value of Unsold Securities on Current Effective Registration Statements   $ 60,000      
Stock Issued During Period, Shares, New Issues (in Shares) 2,375,000        
Sale of Stock, Price Per Share (in Dollars per share) $ 17.50        
Proceeds from Issuance or Sale of Equity $ 38,910        
Cash and Cash Equivalents, at Carrying Value 46,845   $ 27,792 $ 30,419 $ 12,767
Line of Credit [Member] | Wells Fargo Bank, N.A. [Member]          
NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES (Details) [Line Items]          
Line of Credit Facility, Remaining Borrowing Capacity $ 2,839