CONDENSED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Revenue $ 189 $ 150 $ 1,146 $ 563 $ 628 $ 406
Cost of revenue and operating expenses            
Cost of components and personnel 114 60 689 165 156 102
General and administrative expenses 1,771 1,495 5,159 4,621 7,618 5,501
Development expenses 995 1,745 3,655 6,255 7,597 5,468
Stock based compensation 153 131 432 492 625 796
Amortization and depreciation 958 956 2,876 2,862 3,871 2,370
Total cost of revenue and operating expenses 3,991 4,387 12,811 14,395 19,867 14,237
Loss from operations (3,802) (4,237) (11,665) (13,832) (19,239) (13,831)
Other income (expense)            
Changes in fair value of derivative liabilities 1,103 0 1,567 0    
Other income         440 0
Other expense         0 (10,068)
Inducement expense         0 (391)
Interest expense (362) (44) (457) (132) (179) (2,227)
Impairment         0 (933)
Total other income (expense) 741 (44) 1,110 (132) 261 (13,619)
Loss before income tax provision (3,061) (4,281) (10,555) (13,964) (18,978) (27,450)
Income tax provision 0 0 0 0 0 0
Net loss (3,061) (4,281) (10,555) (13,964) (18,978) (27,450)
Dividends and deemed dividends 0 0 (3,079) 0 0 [1] 0
Net loss attributable to common shareholders $ (3,061) $ (4,281) $ (13,634) $ (13,964) $ (18,978) $ (27,450)
Basic and diluted net loss per share (in dollars per share) $ (0.42) $ (1.77) $ (2.75) $ (6.37) $ (8.31) $ (28.59)
Weighted average number of shares outstanding basic and diluted (in shares) 7,279,000 2,420,000 4,959,000 2,192,000 2,285 960
[1] Less than $1