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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Cash flows from operating activities:    
Net loss $ (3,695) $ (5,445)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 478 463
Stock-based compensation 146 384
Valuation of equity instruments   56
Provision for doubtful accounts receivable 104 45
Amortization of intangible assets 314 487
Amortization of discounts on long-term borrowings and acquisition related liabilities 180 375
Deferred revenue (766) 70
Gain on disposal of fixed assets   (10)
Changes in assets and liabilities:    
Accounts receivable, inventories, and other assets (1,274) 2,512
Accounts payable and accrued liabilities (1,655) (1,625)
Total adjustments (2,473) 2,757
Net cash used in operating activities (6,168) (2,688)
Cash flows from investing activities:    
Acquisition of property and equipment (159) (222)
Proceeds from the sale of property and equipment   9
Net cash used in investing activities (159) (213)
Cash flows from financing activities:    
Proceeds from issuances of common stock, net 4,805 450
Proceeds from other borrowings   250
Payments on other borrowings (873) (18)
Net proceeds on credit line borrowings 629  
Net cash provided by financing activities 4,561 682
Effect of exchange rate changes on cash 10 2
Net decrease in cash and cash equivalents (1,756) (2,217)
Cash and cash equivalents at beginning of period 2,136 4,107
Cash and cash equivalents at end of period 380 1,890
Classification of cash and cash equivalents:    
Cash and cash equivalents 353 1,803
Restricted cash held 27 87
Supplemental Information - Non-cash financing activities    
Cognovit promissory note for past due rent   $ 355