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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Series A Cumulative Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Income [Member]
Total
Balance at Dec. 31, 2015 $ 1 $ 9 $ 129,209 $ (456) $ (125,087) $ 172 $ 3,848
Balance, shares at Dec. 31, 2015 156,000 1,849,000          
Foreign currency translation adjustment 51 51
Net loss (2,923) (2,923)
Adjustment to common stock in connection with reverse/forward stock split (Note 9) (3) (3)
Net proceeds from issuance of common stock related to registered direct offering (Note 9) $ 2 2,690 2,692
Net proceeds from issuance of common stock related to registered direct offering (Note 9), shares 412,000          
Dividend paid to Series A preferred stockholders (16) (16)
Dividend paid to Series A preferred stockholders, shares          
Non-cash stock based compensation 419 419
Balance at Dec. 31, 2016 $ 1 $ 11 132,315 (456) (128,026) 223 4,068
Balance, shares at Dec. 31, 2016 156,000 2,261,000          
Foreign currency translation adjustment 122 122
Net loss (1,077) (1,077)
Net proceeds from issuance of common stock related to registered direct offering (Note 9) $ 1 1,772 1,773
Net proceeds from issuance of common stock related to registered direct offering (Note 9), shares 230,000          
Dividend paid to Series A preferred stockholders (16) (16)
Dividend paid to Series A preferred stockholders, shares          
Non-cash stock based compensation 457 457
Common stock issued for compensation in lieu of cash payment $ 1 208 209
Common stock issued for compensation in lieu of cash payment, shares 30,000          
Balance at Dec. 31, 2017 $ 1 $ 13 $ 134,752 $ (456) $ (129,119) $ 345 $ 5,536
Balance, shares at Dec. 31, 2017 156,000 2,521,000