v3.19.1
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Cash flows from operating activities:    
Net loss $ (9,504) $ (5,639)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 211 180
Amortization of right-of-use assets 437  
Amortization of intangible assets 26 20
Amortization of deferred financing costs   61
Provision for bad debt 16 57
Inventory write-downs 444 354
Change in net unrealized gains and losses (294)  
Share-based compensation 2,315 1,729
Change in operating assets and liabilities:    
Accounts receivable 112 (759)
Inventory (1,582) (1,091)
Prepaid expenses and other (1,783) (502)
Accounts payable and accrued expenses 1,161 (241)
Operating lease obligations (423)  
Cash paid for interest portion of finance leases (1)  
Contract and other liabilities (2) (13)
Net cash used in operating activities (8,867) (5,844)
Cash flows from investing activities:    
Purchase of property and equipment (478) (360)
Proceeds from sale of investments 57,171  
Purchase of investments (48,914)  
Acquisition of intangible assets (9) (141)
Net cash provided by / (used for) investing activities 7,770 (501)
Cash flows from financing activities:    
Borrowing on revolving loan   16,146
Payments on revolving loan and prepayment penalties   (16,163)
Repayments of long-term debt and prepayment penalties   (3)
Cash paid for debt portion of finance leases (7)  
Proceeds from exercise of stock options 332 419
Net cash provided by financing activities 325 399
Net decrease in cash, cash equivalents, and restricted cash (772) (5,947)
Cash, cash equivalents, and restricted cash, beginning of period 30,294 36,507
Cash, cash equivalents and restricted cash, end of period 29,522 30,560
Supplemental disclosures of cash flow activity:    
Cash paid for interest 14 $ 577
Supplemental disclosure of non-cash investing and financing activities:    
Payments of fixed assets in accounts payable and accrued expenses 946  
Proceeds from stock option exercise in Other Receivables $ 618  

Source