| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 |
|---|---|---|---|---|---|---|---|---|---|
Cash Flows From Operating Activities: | |||||||||
Net loss | |||||||||
-10,005 | -15,544 | -12,252 | -12,710 | -12,037 | -9,163 | -2,497 | -1,970 | -3,962 | 6,544 |
Adjustments to reconcile net loss to net cash flows used in operating activities: | |||||||||
Depreciation and amortization | |||||||||
390 | 500 | 681 | 574 | 547 | 468 | 428 | 672 | 1,062 | 799 |
Secured convertible debenture issuance expense | |||||||||
- | - | 0 | 281 | 93 | - | - | - | - | - |
(Gain) on disposal of equipment | |||||||||
- | 28 | - | - | - | -2 | - | - | - | - |
Loss on equipment disposal | |||||||||
- | - | - | - | - | - | 0 | - | - | - |
Secured convertible note payable expenses | |||||||||
- | - | - | - | - | 579 | 0 | - | - | - |
Stock-based compensation expense | |||||||||
2,112 | 2,272 | 1,752 | 1,592 | 1,623 | 834 | 705 | 521 | 839 | 1,755 |
Provision for inventory obsolescence | |||||||||
856 | 597 | 990 | 797 | 601 | 339 | -116 | -169 | -186 | 173 |
Change in warrant derivative liabilities | |||||||||
- | 319 | -16 | -33 | - | - | - | - | - | - |
Amortization of discount on unsecured promissory notes | |||||||||
5 | 47 | 405 | 0 | 115 | 137 | - | - | - | - |
Provision for doubtful accounts receivable | |||||||||
60 | - | 0 | -4 | 9 | 4 | - | - | - | 0 |
Interest paid through issuance of common stock | |||||||||
50 | - | - | - | - | - | - | - | - | - |
Provision for doubtful accounts receivable | |||||||||
- | - | - | - | - | - | - | - | 15 | - |
Loss on extinguishment of debt | |||||||||
- | - | - | - | - | - | - | - | -131 | - |
Loss on extinguishment of secured convertible debentures | |||||||||
- | -600 | -424 | 0 | - | - | - | - | - | 0 |
Secured convertible notes issuance expense | |||||||||
-89 | -351 | - | - | - | - | - | - | - | - |
Change in fair value of secured convertible debentures | |||||||||
-519 | -2,296 | - | - | - | - | - | - | - | - |
Change in derivative liabilities | |||||||||
- | - | - | - | 371 | - | - | - | - | - |
Change in derivative liabilities | |||||||||
- | - | - | - | - | -4,426 | 0 | - | - | - |
Change in fair value of secured convertible notes | |||||||||
- | - | -12 | 0 | -4,434 | -776 | 0 | - | - | - |
Change in fair value of proceeds investment agreement | |||||||||
-3,358 | -74 | - | - | - | - | - | - | - | - |
Provision for doubtful accounts receivable | |||||||||
- | - | - | - | - | - | -15 | -54 | - | - |
Change in operating assets and liabilities: | |||||||||
(Increase) decrease in: | |||||||||
Deficiency in tax benefit related to stock-based compensation | |||||||||
- | - | - | - | - | - | - | - | - | -125 |
Deferred tax (benefit) | |||||||||
- | - | - | - | - | - | - | - | - | 2,855 |
Accounts receivable - trade | |||||||||
-716 | -131 | -540 | -854 | 334 | 1,219 | -1,136 | -48 | 1,911 | 3,618 |
Accounts receivable - other | |||||||||
132 | 43 | -2 | 198 | 3 | - | - | - | - | - |
Accounts receivable - other | |||||||||
- | - | - | - | - | -20 | 82 | 33 | 241 | 130 |
Inventories | |||||||||
-862 | -1,153 | 155 | -277 | 2,020 | 1,536 | 635 | -441 | 3,041 | -2,890 |
Prepaid expenses | |||||||||
-48 | 148 | -192 | -183 | 231 | 15 | 115 | 42 | 39 | -116 |
Income tax refund receivable | |||||||||
-45 | - | 90 | 0 | - | - | - | - | - | - |
Operating lease right of use assets | |||||||||
378 | - | - | - | - | - | - | - | - | - |
Other assets | |||||||||
275 | 141 | -146 | -54 | 82 | -10 | 3 | -143 | -6 | 44 |
Increase (decrease) in: | |||||||||
Accounts payable | |||||||||
1,555 | -2,345 | 737 | 1,081 | -1,036 | 969 | -79 | 673 | -2,309 | 1,156 |
Accrued expenses | |||||||||
-1,234 | 862 | -302 | 606 | -173 | -325 | 677 | - | - | - |
Litigation accrual | |||||||||
- | - | - | - | - | -530 | 0 | 530 | 0 | - |
Income taxes payable | |||||||||
2 | -6 | 3 | -3 | 2 | -0 | 1 | - | - | - |
Operating lease obligations | |||||||||
297 | - | - | - | - | - | - | - | - | - |
Contract liabilities | |||||||||
228 | -171 | - | - | - | - | - | - | - | - |
Deposits | |||||||||
- | - | - | - | -1 | 0 | - | - | - | - |
Accrued expenses | |||||||||
- | - | - | - | - | - | - | -39 | 104 | -1,136 |
Income taxes payable | |||||||||
- | - | - | - | - | - | - | -14 | -4 | 16 |
Deferred revenue | |||||||||
- | - | 569 | 744 | 1,177 | 1,047 | 30 | - | - | - |
Customer deposits | |||||||||
- | - | - | - | - | - | - | -30 | 29 | -37 |
Net cash used in operating activities | |||||||||
-1,124 | -9,011 | -6,354 | -5,902 | -7,686 | -3,172 | -564 | -440 | 945 | -301 |
Unearned income | |||||||||
- | - | - | - | - | - | - | 0 | - | - |
Cash Flows from Investing Activities: | |||||||||
Purchases of furniture, fixtures and equipment | |||||||||
204 | 42 | 322 | 340 | 423 | 433 | 275 | 389 | 120 | 341 |
Additions to intangible assets | |||||||||
62 | 104 | 153 | 100 | 195 | 76 | 61 | 26 | 30 | 42 |
Proceeds from the sale of equipment | |||||||||
- | 76 | - | - | - | - | - | - | - | - |
Release (restriction) of cash in accordance with secured convertible note | |||||||||
- | - | - | - | -1,500 | - | - | 662 | 0 | - |
Release of cash in accordance with secured convertible note | |||||||||
- | - | 0 | 500 | - | 1,500 | 0 | - | - | - |
Restricted cash for appealed litigation | |||||||||
- | - | - | - | - | -662 | - | - | - | - |
Restricted cash for appealed litigation | |||||||||
- | - | - | - | - | - | 0 | - | - | - |
Net cash used in investing activities | |||||||||
-266 | -70 | -476 | -940 | 881 | -1,348 | -336 | -1,078 | -151 | -383 |
Cash Flows from Financing Activities: | |||||||||
Proceeds from unsecured promissory note payable | |||||||||
300 | 250 | - | - | - | - | - | - | - | - |
Payoff of proceeds investment agreement | |||||||||
6,000 | - | - | - | - | - | - | - | - | - |
Proceeds from proceeds investment agreement and detachable common stock warrants | |||||||||
- | 10,000 | - | - | - | - | - | - | - | - |
Proceeds from exercise of common stock purchase warrants | |||||||||
- | - | 0 | 119 | 2,133 | 1,786 | 739 | - | - | - |
Proceeds from issuance of subordinated note payable | |||||||||
- | - | - | - | - | - | - | - | 2,309 | 0 |
Proceeds from issuance of common stock and warrants, net of issuance costs | |||||||||
- | - | 2,776 | 0 | 11,223 | 0 | - | 0 | 190 | - |
Proceeds from secured convertible debentures and detachable common stock purchase warrants | |||||||||
2,500 | 6,250 | 0 | 4,000 | 0 | - | - | - | - | - |
Secured convertible debenture issuance expense | |||||||||
89 | 220 | 0 | 281 | 93 | 579 | 10 | - | - | 0 |
Proceeds from subordinated notes payable | |||||||||
- | - | 1,608 | 0 | - | - | - | 0 | - | - |
Proceeds from sale of common stock in underwritten public offering | |||||||||
- | 7,324 | - | - | - | - | - | - | - | - |
Proceeds from secured convertible notes payable | |||||||||
- | - | - | - | - | 6,000 | 0 | - | - | - |
Principal payment on subordinated notes payable | |||||||||
123 | 1,108 | 750 | 0 | 2,500 | 0 | - | - | - | - |
Principal payment on secured convertible notes | |||||||||
- | 9,850 | 600 | 0 | - | - | - | - | - | - |
Proceeds from issuance of common stock upon exercise of warrants | |||||||||
-1,564 | -89 | - | - | - | - | - | - | - | - |
Loss on extinguishment of secured convertible debentures | |||||||||
- | 600 | - | - | - | - | - | - | - | - |
Payments on capital lease obligations | |||||||||
- | 8 | 32 | 34 | 83 | - | - | - | - | - |
Proceeds from issuance of common stock purchase warrants | |||||||||
- | - | - | - | - | - | - | - | - | 0 |
Change in line of credit | |||||||||
- | - | - | - | - | - | - | - | 1,500 | -1,500 |
Deferred issuance costs for subordinated note payable | |||||||||
- | - | - | - | - | - | - | - | 147 | - |
Payments on capital lease obligation | |||||||||
- | - | - | - | - | 91 | 76 | 48 | 0 | - |
Purchase of common shares for treasury | |||||||||
- | - | - | - | - | - | - | - | - | -469 |
Net cash provided by financing activities | |||||||||
-1,848 | 12,126 | 3,002 | 3,802 | 10,680 | 7,115 | 653 | -48 | 852 | 1,125 |
Net decrease in cash and cash equivalents | |||||||||
-3,239 | 3,044 | - | - | - | - | - | - | - | - |
Proceeds from exercise of stock options | |||||||||
- | - | - | - | - | - | - | - | - | 95 |
Net increase (decrease) in cash and cash equivalents | |||||||||
- | - | -3,828 | -3,040 | 3,874 | 2,594 | -248 | -1,567 | 1,646 | 440 |
Supplemental disclosures of cash flow information: | |||||||||
Cash payments for interest | |||||||||
30 | 1,367 | 238 | 3 | - | - | - | - | - | - |
Cash payments for interest | |||||||||
- | - | - | - | 178 | 264 | 215 | 209 | 112 | 24 |
Cash payments for income taxes | |||||||||
3 | 6 | 6 | 10 | 2 | 10 | - | - | - | - |
Cash payments for income taxes | |||||||||
- | - | - | - | - | - | 3 | 17 | 4 | 15 |
Supplemental disclosures of non-cash investing and financing activities: | |||||||||
Restricted common stock grant | |||||||||
0 | 0 | 0 | 0 | 0 | - | - | - | 0 | - |
Restricted common stock forfeitures | |||||||||
0 | 0 | - | - | - | - | - | - | - | - |
Impact of Adoption of ASC 842 - obtaining right of use asset for lease liability | |||||||||
500 | - | - | - | - | - | - | - | - | - |
Restricted common stock forfeitures | |||||||||
- | - | -0 | -0 | 0 | -0 | - | - | - | - |
Amounts allocated to common stock purchase warrants in connection with proceeds from secured convertible debentures | |||||||||
535 | 1,684 | - | - | - | - | - | - | - | - |
Restricted common stock forfeitures | |||||||||
- | - | - | - | - | - | 0 | - | - | - |
Issuance of common stock purchase warrants related to extension of subordinated note payable | |||||||||
- | - | - | - | - | - | 205 | - | - | - |
Capital expenditures financed by capital lease obligations | |||||||||
- | - | - | - | 94 | 0 | 45 | - | - | - |
Issuance of common stock upon exercise of stock options and warrants | |||||||||
- | - | - | - | 1,748 | 835 | - | - | - | - |
Restricted common stock grant | |||||||||
- | - | - | - | - | 0 | 0 | - | - | - |
Issuance of common stock purchase warrants related to issuance of subordinated note payable | |||||||||
- | - | - | - | - | - | - | 38 | - | 0 |
Issuance of common stock purchase warrants for issuance costs of subordinated notes payable | |||||||||
- | - | - | - | - | - | - | - | 46 | - |
Issuance of common stock purchase warrants related to consulting agreement | |||||||||
- | - | - | - | - | - | - | 4 | 0 | - |
Restricted common stock grant | |||||||||
- | - | - | - | - | - | - | 0 | - | - |
Capital expenditures financed by capital lease obligations | |||||||||
- | - | - | - | - | - | - | 234 | 0 | - |
Common stock surrendered in cashless exercise of stock options and warrants | |||||||||
- | - | - | - | - | 0 | 0 | - | - | - |
Issuance of common stock upon conversion of secured convertible notes | |||||||||
648 | 293 | - | - | 7,740 | 2,294 | - | - | - | - |
Issuance of common stock In connection with issuance of secured convertible notes | |||||||||
118 | - | - | - | - | - | - | - | - | - |
Amounts allocated to common stock purchase warrants in connection with issuance of unsecured promissory note payable | |||||||||
71 | - | - | - | - | - | - | - | - | - |
Amounts allocated to common stock purchase warrants in connection with proceeds investment agreement | |||||||||
- | 932 | - | - | - | - | - | - | - | - |
Issuance of common stock upon conversion of accounts payable | |||||||||
- | 63 | - | - | - | - | - | - | - | - |
Issuance of common stock upon conversion of secured notes payable and accrued interest | |||||||||
- | 153 | - | - | - | - | - | - | - | - |
Issuance of common stock upon exercise of common stock purchase warrants accounted for as derivative warrant liabilities | |||||||||
- | 335 | - | - | - | - | - | - | - | - |
Amounts allocated to common stock purchase warrants in connection with proceeds from subordinated notes payable | |||||||||
- | 47 | 830 | 0 | - | - | - | - | - | - |
Issuance of stock purchase warrants with convertible note payable | |||||||||
- | - | - | - | - | 2,393 | 0 | - | - | - |
Issuance of stock purchase warrants with convertible note payable | |||||||||
- | - | - | - | - | - | 0 | - | - | - |
Issuance of common stock for accrued interest | |||||||||
- | - | - | - | - | 2 | 0 | - | - | - |
Conversion of secured convertible note into common stock | |||||||||
- | - | - | - | - | - | 0 | - | - | - |
Common stock surrendered as consideration for exercise of stock options | |||||||||
- | - | - | - | - | - | - | - | - | -833 |
Transfer of demonstration equipment from inventory to equipment | |||||||||
- | - | - | - | - | - | - | - | - | 0 |