| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 |
|---|---|---|---|---|---|---|---|---|---|
Net loss | |||||||||
-15,566 | -9,914 | -6,731 | -7,013 | -11,711 | -5,789 | -16,068 | -13,090 | -7,678 | -7,805 |
Adjustments to reconcile net loss to net cash used in operating activities: | |||||||||
Technology access fee paid in convertible note payable to shareholder | |||||||||
- | - | - | - | 5,000 | - | - | - | - | - |
Technology access fee paid in common stock and convertible note payable to shareholder | |||||||||
- | - | - | - | - | - | 6,000 | - | - | - |
Stock retention awards | |||||||||
- | - | - | - | - | - | - | - | 140 | - |
Accretion of discount on notes payable to shareholder | |||||||||
- | - | - | - | - | - | - | 483 | - | - |
Depreciation and amortization | |||||||||
62 | 30 | 65 | 75 | 71 | 27 | 76 | 75 | 79 | - |
Stock issued as compensation to non-employee directors | |||||||||
- | 24 | - | - | - | - | - | - | - | - |
Warrant issued in exchange for services | |||||||||
- | - | 118 | - | - | - | - | - | - | - |
Depreciation and amortization | |||||||||
- | - | - | - | - | - | - | - | - | 42 |
Stock-based compensation expense | |||||||||
552 | 996 | - | - | - | 184 | - | 1,280 | 1,262 | 667 |
Loss on sale of fixed assets | |||||||||
- | - | - | -3 | 1 | -0 | - | - | - | - |
Stock issued as compensation to non-employee directors | |||||||||
- | - | 123 | 151 | 264 | - | - | - | - | - |
Stock-based compensation expense | |||||||||
- | - | 437 | 487 | 770 | - | 3,449 | - | - | - |
Stock issued in exchange for services | |||||||||
12 | 12 | - | - | - | 102 | - | 5,798 | - | 99 |
Gain on sale of discontinued operations | |||||||||
- | - | - | 1,453 | - | - | - | - | - | - |
Decrease in fair value of derivative liability | |||||||||
- | - | 188 | - | - | - | - | - | - | - |
Changes in operating assets and liabilities: | |||||||||
Accounts receivable, net | |||||||||
- | - | - | - | - | -48 | -5 | -22 | -30 | -39 |
Income tax receivable | |||||||||
- | - | - | - | - | - | - | - | -362 | 362 |
Inventory, net | |||||||||
- | - | - | - | - | 150 | 164 | -351 | 208 | 134 |
Prepaid expenses and other current assets | |||||||||
-1,427 | 453 | 713 | -229 | -68 | -214 | -203 | -26 | -153 | -4 |
Accounts payable and accrued expenses | |||||||||
498 | 225 | 525 | 446 | 348 | -199 | -234 | -57 | 225 | 1,036 |
Net cash used in operating activities | |||||||||
-13,012 | -9,079 | -6,363 | -7,075 | -5,189 | - | - | - | -5,494 | -6,448 |
Cash flows from investing activities: | |||||||||
Proceeds from sale of fixed assets | |||||||||
- | - | - | 2 | 1 | 0 | - | - | - | - |
Deferred revenue | |||||||||
- | - | - | - | - | 2 | -32 | -101 | 139 | -36 |
Net cash used in operating activities | |||||||||
- | - | - | - | - | -5,559 | -6,764 | -5,211 | - | - |
Purchase of property and equipment | |||||||||
25 | 124 | - | 27 | 102 | 110 | 18 | 11 | - | 88 |
Proceeds from payment of note receivable | |||||||||
- | - | - | 250 | - | - | - | - | - | - |
Proceeds from sale of discontinued operations | |||||||||
- | - | - | 1,450 | - | - | - | - | - | - |
Proceeds from payment of note receivable | |||||||||
- | - | - | - | - | - | - | 750 | - | - |
Net cash used by investing activities | |||||||||
-25 | -124 | - | 1,675 | -101 | - | - | - | - | -88 |
Cash flows from financing activities: | |||||||||
Exercise of common stock options | |||||||||
- | - | - | - | - | - | 39 | - | - | - |
Borrowings under note payable to shareholder | |||||||||
- | - | - | - | - | - | - | - | - | 1,000 |
Borrowings under convertible secured note payable to shareholder | |||||||||
- | - | - | - | - | - | - | 2,500 | 5,500 | 2,000 |
Payments on short-term notes payable | |||||||||
252 | 200 | - | - | - | - | 140 | 140 | - | - |
Net cash used in investing activities | |||||||||
- | - | - | - | - | -110 | -18 | -11 | - | - |
Payments on short-term notes payable | |||||||||
- | - | -157 | -158 | -159 | -158 | - | - | - | - |
Proceeds from issuance of note payable to shareholder | |||||||||
- | - | 2,400 | - | - | - | - | - | - | - |
Net proceeds from issuance of common stock, convertible preferred stock, and warrants | |||||||||
11,350 | 12,431 | - | - | - | - | - | - | - | - |
Proceeds from issuance of common stock for warrant exercise | |||||||||
- | 9,505 | - | - | - | - | - | - | - | - |
Net proceeds from issuance of convertible preferred stock and warrants | |||||||||
- | - | 6,176 | - | - | - | - | - | - | - |
Proceeds from payment of stock subscription receivable | |||||||||
- | - | 30 | 1,969 | - | - | - | - | - | - |
Net proceeds from issuance of common stock and warrants | |||||||||
- | 1,510 | - | - | - | - | - | - | - | - |
Payment of income taxes associated with stock based compensation | |||||||||
- | - | - | - | - | - | 631 | 224 | - | - |
Payments on short term notes payable | |||||||||
- | - | - | - | - | - | - | - | 172 | 107 |
Net proceeds from issuance of common stock | |||||||||
- | - | - | 2,640 | - | - | 13,804 | 11,888 | - | 1,500 |
Purchase of treasury stock | |||||||||
- | - | - | - | - | - | - | - | 3 | - |
Restricted cash (receipts) released, net | |||||||||
- | - | - | - | - | - | 61 | 203 | 210 | 1,974 |
Net cash provided by (used in) financing activities | |||||||||
11,097 | 23,246 | 8,449 | 4,451 | -159 | - | - | - | 5,534 | 6,367 |
Net increase (decrease) in cash and cash equivalents | |||||||||
-1,940 | 14,042 | - | - | - | - | - | - | - | - |
Net cash used in financing activities | |||||||||
- | - | - | - | - | -158 | 13,133 | 14,977 | - | - |
Net increase in cash and cash equivalents | |||||||||
- | - | 2,085 | -948 | -5,450 | -5,827 | 6,350 | 9,754 | 39 | -169 |
Operating cash flows from discontinued operations | |||||||||
- | - | - | -54 | 85 | - | - | - | - | - |
Supplemental disclosure of cash flow information: | |||||||||
Par value of common stock issued for cashless exercise of warrants | |||||||||
- | - | - | - | 0 | 0 | 0 | 0 | - | - |
Par value of restricted shares forfeited | |||||||||
- | - | - | 0 | - | - | - | - | - | - |
Interest paid | |||||||||
7 | 5 | 4 | - | - | - | - | - | - | 21 |
Interest paid | |||||||||
- | - | - | 4 | 5 | 4 | 3 | 3 | 5 | - |
Non-cash investing and financing activities: | |||||||||
Conversion of convertible note payable and accrued interest to common shares | |||||||||
- | - | - | - | 5,071 | - | 1,969 | - | - | - |
Borrowings under short term notes payable for prepaid expense | |||||||||
272 | 244 | 172 | 161 | 158 | - | - | - | - | - |
Par value of restricted shares issued | |||||||||
- | 0 | - | - | - | - | - | - | - | - |
Stock dividend on Series C preferred stock | |||||||||
413 | 58 | - | - | - | - | - | - | - | - |
Short-term note receivable from stockholder in exchange for the issuance of common stock | |||||||||
- | - | - | 2,000 | - | - | - | - | - | - |
Borrowings under short term notes payable for prepaid expense | |||||||||
- | - | - | - | - | 158 | 157 | 134 | 126 | - |
Par value of restricted shares issued | |||||||||
- | - | 0 | 0 | 0 | - | - | - | - | - |
Deemed dividend on Series D preferred stock | |||||||||
- | 1,412 | - | - | - | - | - | - | - | - |
Par value of common stock issued in exchange for services | |||||||||
0 | 0 | - | - | - | - | - | - | - | - |
Fair market value of 48,387 warrants issued for financial advisory services | |||||||||
- | - | 118 | - | - | - | - | - | - | - |
Borrowings under short term notes payable for prepaid expense | |||||||||
- | - | - | - | - | - | - | - | - | 63 |
Par value of restricted stock granted as stock compensation | |||||||||
- | - | - | - | - | - | - | - | 0 | - |
Debt converted to Series C preferred stock | |||||||||
- | - | - | - | - | - | - | 11,275 | - | - |
Discount on note payable to shareholder for warrants issued | |||||||||
- | - | - | - | - | - | - | 483 | - | - |
Par value of forfeited stock | |||||||||
- | - | - | - | - | - | - | 5.00 | - | - |
Fair market value of the 771,169 warrants issued to Placement Agent as a reduction in paid in capital from issuance of common stock | |||||||||
- | - | - | - | - | - | - | 1,939 | - | - |
Common stock issued in exchange for cancellation of note payable to shareholder | |||||||||
- | - | - | - | - | - | - | - | - | 1,000 |
Borrowings under short term notes payable for purchase of property and equipment | |||||||||
- | - | - | - | - | - | - | - | - | 107 |
Series A Preferred Stock [Member] | |||||||||
Par value of common stock issued in connection with stock conversion | |||||||||
- | 0 | - | - | - | - | - | - | - | - |
Conversion of preferred stock into common stock | |||||||||
- | 268 | - | - | - | - | - | - | - | - |
Series D Preferred Stock [Member] | |||||||||
Par value of common stock issued in connection with stock conversion | |||||||||
- | 9 | - | - | - | - | - | - | - | - |
Conversion of preferred stock into common stock | |||||||||
- | 4,464 | - | - | - | - | - | - | - | - |