CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
3 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Cash flows from operating activities:    
Net loss $ (376) $ (137)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:    
Depreciation from discontinued operations 0 52
Stock-based compensation 71 309
Provision for doubtful accounts receivable 0 (1)
Changes in assets and liabilities:    
Accounts receivable 0 (490)
Inventory 0 33
Prepaid expenses and other assets (51) (135)
Accounts payable 52 (558)
Accrued expenses (134) (675)
Deferred revenue (464) (2,518)
Net cash used in operating activities (902) (4,120)
Cash flows from investing activities:    
Purchase of property and equipment from discontinued operations 0 (10)
Net cash used in investing activities 0 (10)
Cash flows from financing activities:    
Preferred dividends (136) 0
Net cash used in financing activities (136) 0
Effect of foreign exchange rate on cash and cash equivalents 0 (4)
Change in cash and cash equivalents (1,038) (4,134)
Cash, cash equivalents, and restricted cash beginning of period 4,093 11,792
Cash, cash equivalents, and restricted cash end of period 3,055 7,658
Supplemental disclosure of cash flow information:    
Cash paid for interest 0 128
Cash paid for income taxes 2 0
Supplemental disclosure of non cash financing activities:    
Conversion of preferred stock to common stock 0 302
Common stock dividends issued to preferred shareholders $ 0 $ 139