| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | |
|---|---|---|---|---|---|---|
Operating activities | ||||||
Net loss | ||||||
-19,297 | -16,453 | -18,960 | - | - | - | |
Net loss | ||||||
- | - | - | -26,039 | -21,397 | -13,958 | |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Depreciation and amortization | ||||||
1,259 | 1,468 | 1,241 | 1,473 | 662 | 496 | |
Accretion of discount on NuvoGen obligation | ||||||
13 | 12 | - | - | - | - | |
Accretion of discount on NuvoGen obligation | ||||||
- | - | 195 | 206 | 281 | - | |
Accretion of discount on NuvoGen obligation | ||||||
- | - | - | - | - | 187 | |
Bad debt expense, net of recoveries | ||||||
- | - | - | - | 44 | 115 | |
Provision for excess inventory | ||||||
153 | 83 | 366 | 723 | 230 | 54 | |
Amortization of Growth Term Loan discount and issuance costs | ||||||
- | 62 | 404 | 551 | 352 | - | |
Loss on extinguishment of Growth Term Loan | ||||||
- | -105 | - | - | -705 | - | |
Write-off of ATM offering costs | ||||||
108 | - | - | - | - | - | |
Amortization of QNAH Convertible Note issuance costs | ||||||
13 | 13 | 1 | - | - | - | |
Amortization of MidCap Credit Facility discount and issuance costs | ||||||
183 | 133 | - | - | - | - | |
Amortization of convertible note discount and issuance costs | ||||||
- | - | - | - | 112 | - | |
Amortization of deferred financing costs | ||||||
- | - | - | - | - | 13 | |
Amortization of discount on term loan | ||||||
- | - | - | - | - | 84 | |
Amortization of final payment premium on term loan | ||||||
- | - | - | - | - | 56 | |
Stock-based compensation expense | ||||||
1,156 | 1,888 | 1,376 | 903 | 405 | 184 | |
Employee stock purchase plan expense | ||||||
66 | 58 | 59 | 98 | - | - | |
Amortization of operating lease right-of-use assets | ||||||
476 | - | - | - | - | - | |
Amortization of incentive from landlord | ||||||
- | 142 | - | - | - | - | |
Change in redeemable convertible preferred stock warrant liability | ||||||
- | - | - | - | 239 | 388 | |
Accretion of incentive from landlord | ||||||
- | - | 142 | 130 | - | - | |
Accrued interest on available-for-sale securities investments | ||||||
325 | 412 | - | -172 | - | - | |
Loss on abandonment of assets | ||||||
-9 | -8 | -81 | -98 | -12 | -35 | |
Changes in operating assets and liabilities: | ||||||
Accounts receivable | ||||||
-1,848 | -1,332 | 4,978 | 661 | -40 | 312 | |
Inventory | ||||||
116 | 171 | -77 | 33 | 746 | 746 | |
Prepaid expenses and other | ||||||
177 | 113 | 3 | -11 | 334 | -52 | |
Deferred offering costs | ||||||
- | -2 | -49 | - | - | - | |
Accounts payable | ||||||
-155 | -150 | 1,225 | 10 | -312 | 198 | |
Accrued liabilities | ||||||
-1,440 | -447 | 2,076 | 119 | 455 | 278 | |
Contract liabilities | ||||||
188 | -426 | 355 | - | - | - | |
Operating lease liabilities | ||||||
-632 | - | - | - | - | - | |
Net cash used in operating activities | ||||||
-16,695 | -13,173 | -16,572 | - | - | - | |
Investing activities | ||||||
Deferred revenue | ||||||
- | - | - | 259 | 6 | -95 | |
Other long term liabilities | ||||||
- | - | - | - | -0 | -29 | |
Net cash used in operating activities | ||||||
- | - | - | -22,234 | -19,243 | -12,996 | |
Purchase of property and equipment | ||||||
1,103 | 949 | 1,020 | 1,946 | 1,338 | 857 | |
Sales, redemptions and maturities of available-for-sale securities | ||||||
32,200 | 31,700 | 4,300 | 29,750 | 7,500 | - | |
Purchase of available-for-sale securities | ||||||
34,601 | 53,970 | - | - | - | - | |
Purchase of available-for-sale securities | ||||||
- | - | - | 3,381 | 38,346 | - | |
Net cash provided by investing activities | ||||||
-3,504 | -23,220 | 3,279 | - | - | - | |
Financing activities | ||||||
Net cash (used in) provided by investing activities | ||||||
- | - | - | 24,422 | -32,184 | -857 | |
Proceeds from MidCap Credit Facility | ||||||
- | 7,000 | - | - | - | - | |
MidCap Credit Facility lender fees | ||||||
- | 422 | - | - | - | - | |
Proceeds from convertible notes | ||||||
- | - | - | - | 4,500 | - | |
QNAH Convertible Note financing costs | ||||||
- | - | - | - | 75 | - | |
Proceeds from Growth Term Loan | ||||||
- | - | - | 5,000 | - | - | |
Payments on Growth Term Loan | ||||||
- | 1,684 | 6,389 | 4,446 | - | - | |
Payments for extinguishment of Growth Term Loan | ||||||
- | 4,276 | - | - | - | - | |
Proceeds from 2018 underwritten public offering, net of underwriting discounts, commissions and issuance costs of $2.6 million | ||||||
- | 37,724 | -231 | - | 47,654 | - | |
Proceeds from 2019 underwritten public and private offerings, net of underwriting discounts, commissions and issuance costs of $1.7 million | ||||||
20,758 | - | - | - | - | - | |
Public offering costs | ||||||
- | - | - | 49 | 1,002 | 1,205 | |
Proceeds from ATM Offering, net | ||||||
- | 556 | 19,908 | - | - | - | |
Proceeds from issuance of convertible note to QNAH, a related party | ||||||
- | - | 3,000 | - | - | - | |
QNAH Convertible Note financing costs | ||||||
- | - | 40 | - | - | - | |
Proceeds from Series A convertible preferred stock in private placement | ||||||
- | - | - | 2,000 | - | - | |
Proceeds from exercise of pre-funded warrants | ||||||
- | - | - | - | 8 | - | |
Draws on line of credit | ||||||
- | - | - | - | - | 750 | |
Payments on line of credit | ||||||
- | - | - | - | - | 750 | |
Payments on NuvoGen obligation | ||||||
1,327 | 1,012 | 800 | 543 | - | 1,206 | |
Payments on financing leases | ||||||
44 | 62 | - | - | - | - | |
Payments on capital leases | ||||||
- | - | 69 | 133 | 29 | 21 | |
Proceeds from exercise of stock options | ||||||
120 | 316 | 112 | 23 | 34 | 21 | |
Taxes paid for net share settlement of restricted stock awards | ||||||
-30 | -150 | - | - | - | - | |
Proceeds from term loan | ||||||
- | - | - | - | - | 10,680 | |
Proceeds from issuance of convertible note warrants | ||||||
- | - | - | - | 1 | - | |
Proceeds from shares purchased under stock purchase plans | ||||||
104 | 140 | 266 | 174 | 20 | - | |
Payment of deferred offering costs | ||||||
190 | - | 2 | - | - | - | |
Net cash provided by (used in) financing activities | ||||||
19,391 | 38,129 | 15,753 | - | - | - | |
Effect of exchange rates on cash | ||||||
-4 | -1 | - | - | - | - | |
Increase (decrease) in cash, cash equivalents and restricted cash | ||||||
-812 | 1,734 | 2,460 | - | - | - | |
Settlement of fractional common shares | ||||||
- | - | - | - | 2 | - | |
Net cash provided by (used in) financing activities | ||||||
- | - | - | 2,025 | 51,108 | 15,652 | |
Increase (decrease) in cash and cash equivalents | ||||||
- | - | - | 4,213 | -319 | 1,798 | |
Supplemental disclosure of noncash investing and financing activities | ||||||
Reclassification of convertible preferred stock liability warrants to equity warrants | ||||||
- | - | - | - | 1,616 | - | |
Fixed asset purchases payable and accrued at period end | ||||||
8 | 39 | 477 | 26 | 122 | - | |
Adoption of ASC 842, Leases | ||||||
694 | - | - | - | - | - | |
Operating lease right-of-use assets obtained in exchange for operating lease liabilities | ||||||
1,005 | - | - | - | - | - | |
Financing lease right-of-use assets obtained in exchange for financing lease liabilities | ||||||
63 | - | - | - | - | - | |
Accretion of preferred stock issuance costs | ||||||
- | - | - | - | 35 | 102 | |
Accretion of warrant discount | ||||||
- | - | - | - | - | -313 | |
Adjustment to Series B book value | ||||||
- | - | - | - | - | -112 | |
Accretion of dividends | ||||||
- | - | - | - | 1,165 | 3,244 | |
Deferred offering costs reclassified to distributions in excess of capital | ||||||
- | - | - | - | 2,297 | - | |
Accrual of deferred offering and finance costs | ||||||
- | - | - | - | - | 178 | |
Allocation of Series E warrant convertible notes debt discount | ||||||
- | - | - | - | 741 | - | |
Allocation of Series E warrant debt discount | ||||||
- | - | - | - | - | 301 | |
Conversion of convertible notes and related accrued interest to common stock | ||||||
- | - | - | - | 4,544 | - | |
Equipment purchased through capital leases | ||||||
- | 71 | - | - | - | - | |
Carrying value of demonstration units transferred from property and equipment to inventory | ||||||
- | 49 | 113 | - | - | - | |
Debt issuance costs payable and accrued at period end | ||||||
- | 59 | - | - | - | - | |
MidCap Term Loan fees and warrant discount | ||||||
- | 389 | - | - | - | - | |
Stock issued for settlement of accrued bonus | ||||||
- | - | - | 364 | - | - | |
Purchase of property and equipment under capital lease | ||||||
- | - | - | 227 | - | - | |
Incentive from landlord | ||||||
- | - | - | 710 | - | - | |
Retirement of treasury stock | ||||||
- | - | 75 | - | - | - | |
Supplemental cash flow information | ||||||
Cash paid for interest | ||||||
686 | 553 | 698 | - | - | - | |
Cash paid for interest | ||||||
- | - | - | 1,109 | 935 | 368 | |
Cash paid for taxes | ||||||
3 | 3 | 1 | 7 | - | - | |