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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Cash flows from operating activities:      
Income (loss) for the year $ (5,409,737) $ (5,842,172) $ 2,980,426
Adjustments to reconcile income (loss) for the year to net cash used in operating activities:      
Depreciation 59,584 44,891 34,683
Stock-based compensation 70,247 18,013 50,380
Incremental fair market value adjustments of modified warrants issued to placement agent 211,077
Change in the fair value of warrants issued with down-round protection (289,626) (149,092) (6,559,758)
Linkage difference on principal of loans from stockholders (629) (2,521) (556)
Loss on partial extinguishment of Series A Preferred Stock and Series A Warrants 1,284,354
Changes in assets and liabilities:      
Decrease (increase) in accounts receivable (73,440) 4,131 (24,539)
Increase in inventory (590,616) (737,554) (94,895)
Increase in other current assets (85,415) (156,302) (32,416)
Increase in accounts payable 526,560 982,215 68,838
Increase (decrease) in other current liabilities 270,165 (11,187) 216,192
Net cash used in operating activities (5,311,830) (4,565,224) (3,361,645)
Cash flows from investment activities:      
Increase in funds in respect of employee rights upon retirement (24,279) (28,058)
Purchase of property and equipment (76,455) (143,736) (63,455)
Increase in long-term restricted cash (35,152)
Net cash used in investment activities (76,455) (203,167) (91,513)
Cash flows from financing activities      
Cash dividend on Series A Preferred Stock (13,529) (57,061) (370,441)
Proceeds allocated to Series B Preferred Stock, net of cash issuance expenses 3,710,860
Proceeds allocated to Series B Warrants, net of cash issuance expenses 3,632,531
Proceeds allocated to Series C Preferred Stock, net of cash issuance expenses 3,310,617
Proceeds allocated to Series C Warrants, net of cash issuance expenses 1,639,468
Proceeds from exercise of employees’ stock options 36,137
Repayment of loan from stockholders (439,939)
Net cash provided by (used in) financing activities 4,936,556 (460,863) 6,972,950
Effect of exchange rate changes on cash and cash equivalents (8,136) 10,395 (78,143)
Increase (decrease) in cash and cash equivalents (459,865) (5,218,859) 3,441,649
Cash and cash equivalents at beginning of the year 608,701 5,827,560 2,385,911
Cash and cash equivalents at end of the year $ 148,836 $ 608,701 $ 5,827,560