XML 17 R3.htm IDEA: XBRL DOCUMENT v3.7.0.1
CONSOLIDATED CONDENSED BALANCE SHEETS (UNAUDITED) (Parenthetical) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Current assets:    
Accounts receivable, reserves $ 167 $ 167
Stockholders’ equity:    
Convertible preferred stock 3.60% 3.60%
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000
Preferred stock, shares issued (in shares) 13,500 13,500
Preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 75,000,000 75,000,000
Common stock, shares issued (in shares) 23,767,423 21,707,890
Common stock, shares outstanding (in shares) 23,767,423 21,707,890