CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Cash flows from operating activities    
Net loss $ (3,879) $ (3,121)
Adjustments to reconcile net loss to net cash used in operating activities:    
Stock-based compensation 659 179
Amortization of deferred debt issuance costs and debt discount 0 691
Amortization of trademark 66 65
Gain on settlement of customer refund (68) 0
Provision for doubtful accounts 20 119
Changes in operating assets and liabilities:    
Accounts receivable 622 (513)
Inventories 498 (396)
Prepaid expenses and other 294 87
Accounts payable 331 445
Accrued expenses (302) 317
Customer refund (504) (25)
Due to related parties (10) 0
Net cash used in operating activities (2,273) (2,152)
Cash flows from financing activities    
Proceeds from issuance of preferred stock, net 0 2,393
Issuance of common stock, net of issuance cost 419 0
Proceeds from issuance of convertible notes 340 0
Short-term loan - related party 100 24
Proceeds from issuance of bridge financing 0 406
Payments on trademark note payable 0 (75)
Proceeds from credit facility 0 581
Payments on credit facility 0 (474)
Prepaid IPO costs 0 (613)
Deferred financing costs 0 (57)
Net cash provided by financing activities 859 2,185
Net (decrease) increase in cash (1,414) 33
Cash, beginning of the period 1,453 119
Cash, end of the period 39 152
Cash paid during the period for:    
Interest 1 29
Non-cash investing and financing activities:    
Conversion of related party debt into equity 100 0
Deferred IPO costs $ 0 $ 356