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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Oct. 31, 2013
Oct. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (1,717) $ (2,805)
Adjustments to reconcile net loss from operations to net cash used in operating activities:    
Depreciation 54 75
Loss on disposal of property and equipment 32 11
Stock-based compensation 71 115
Amortization of loan discount 206 492
Provision (recovery) related to doubtful accounts receivable 12 (62)
Provision for obsolete inventory 368 (709)
Change in fair value of derivative liabilities (271) 389
Supplier settlement   (1,443)
Changes in operating assets and liabilities:    
Accounts receivable due from customers (170) (188)
Accounts receivable due from suppliers 522 (636)
Inventory 98 621
Other current assets (15) 30
Accounts payable 706 1,506
Accrued liabilities (344) 308
Net cash used in operating activities (448) (2,296)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (9) (62)
Proceeds from sale of property and equipment 28  
Change in restricted cash   10
Net cash provided by (used in) investing activities 19 (52)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Loan proceeds 1,500 2,000
Loan repayment (2,000)  
Net proceeds from common stock issued 1,030  
Net cash provided by financing activities 530 2,000
Net increase (decrease) in cash and cash equivalents 101 (348)
Cash and cash equivalents, beginning of period 104 908
Cash and cash equivalents, end of period 205 560
Noncash investing and financing activities:    
Loan discount recorded in connection with issuance of warrants   1,365
Debt discount recorded upon issuance of convertible debt 624  
Issuance of common stock upon the vesting of restricted stock units 19 23
Supplemental disclosures of cash flow information:    
Cash paid for interest 76 0
Cash paid for income taxes, net of refunds $ 2 $ 2