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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Balance at Dec. 31, 2014 $ 613 $ 68,656 $ 41,588 $ 1,243 $ (110,874)
Balance (in shares) at Dec. 31, 2014   10,593      
Stock options issued to employees 9 $ 0 9 0 0
Exercise of stock options 27 $ 27 0 0 0
Exercise of stock options (in shares)   27      
Net income (loss) 177 $ 0 0 0 177
Balance at Mar. 31, 2015 826 $ 68,683 41,597 1,243 (110,697)
Balance (in shares) at Mar. 31, 2015   10,620      
Balance at Dec. 31, 2014 613 $ 68,656 41,588 1,243 (110,874)
Balance (in shares) at Dec. 31, 2014   10,593      
Net income (loss) 4        
Balance at Jun. 30, 2015 1,112 $ 69,132 41,607 1,243 (110,870)
Balance (in shares) at Jun. 30, 2015   10,920      
Balance at Mar. 31, 2015 826 $ 68,683 41,597 1,243 (110,697)
Balance (in shares) at Mar. 31, 2015   10,620      
Stock options issued to employees 10 $ 0 10 0 0
Exercise of warrants 449 $ 449 0 0 0
Exercise of warrants (in shares)   300      
Net income (loss) (173) $ 0 0 0 (173)
Balance at Jun. 30, 2015 1,112 $ 69,132 41,607 1,243 (110,870)
Balance (in shares) at Jun. 30, 2015   10,920      
Stock options issued to employees 9 $ 0 9 0 0
Exercise of stock options 21 $ 21 0 0 0
Exercise of stock options (in shares)   20      
Net income (loss) (123) $ 0 0 0 (123)
Balance at Sep. 30, 2015 1,019 $ 69,153 41,616 1,243 (110,993)
Balance (in shares) at Sep. 30, 2015   10,940      
Stock options issued to employees 69 $ 0 69 0 0
Net income (loss) (540) 0 0 0 (540)
Balance at Dec. 31, 2015 548 $ 69,153 41,685 1,243 (111,533)
Balance (in shares) at Dec. 31, 2015   10,940      
Warrants issued to consultants 13 $ 0 13 0 0
Exercise of warrants 102 $ 102 0 0 0
Exercise of warrants (in shares)   67      
Net income (loss) (420) $ 0 0 0 (420)
Balance at Mar. 31, 2016 243 $ 69,255 41,698 1,243 (111,953)
Balance (in shares) at Mar. 31, 2016   11,007      
Balance at Dec. 31, 2015 $ 548 $ 69,153 41,685 1,243 (111,533)
Balance (in shares) at Dec. 31, 2015   10,940      
Exercise of stock options (in shares) 0        
Net income (loss) $ (1,144)        
Balance at Jun. 30, 2016 4,653 $ 74,261 41,826 1,243 (112,677)
Balance (in shares) at Jun. 30, 2016   13,643      
Balance at Mar. 31, 2016 243 $ 69,255 41,698 1,243 (111,953)
Balance (in shares) at Mar. 31, 2016   11,007      
Stock options issued to employees 111 $ 0 111 0 0
Exercise of stock options 6 $ 6 0 0 0
Exercise of stock options (in shares)   4      
Warrants issued to consultants 17 $ 0 17 0 0
Rights offering 5,000 $ 5,000 0 0 0
Rights offering (in shares)   2,632      
Net income (loss) (724) $ 0 0 0 (724)
Balance at Jun. 30, 2016 $ 4,653 $ 74,261 $ 41,826 $ 1,243 $ (112,677)
Balance (in shares) at Jun. 30, 2016   13,643