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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Cash flows from operating activities:    
Net loss $ (2,767) $ (3,986)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 315 333
Stock-based compensation 104 309
Valuation of equity instruments   56
Provision for doubtful accounts receivable 76 23
Amortization of intangible assets 210 325
Amortization of discounts on long-term borrowings and acquisition related liabilities 125 245
Deferred revenue 26 85
Gain on disposal of fixed assets   (10)
Changes in assets and liabilities:    
Accounts receivable, inventories, and other assets (2,553) 133
Accounts payable and accrued liabilities (2,264) (1,270)
Total adjustments (3,961) 229
Net cash used in operating activities (6,728) (3,757)
Cash flows from investing activities:    
Acquisition of property and equipment (107) (203)
Proceeds from the sale of property and equipment   9
Net cash used in investing activities (107) (194)
Cash flows from financing activities:    
Proceeds from issuances of common stock, net 4,820 450
Proceeds from other borrowings   355
Payments on other borrowings (861) (8)
Net proceeds on credit line borrowings 1,363  
Net cash provided by financing activities 5,322 797
Effect of exchange rate changes on cash 4 16
Net decrease in cash and cash equivalents (1,509) (3,138)
Cash and cash equivalents at beginning of period 2,136 4,107
Cash and cash equivalents at end of period 627 969
Classification of cash and cash equivalents:    
Cash and cash equivalents 554 906
Restricted cash held 73 63
Cash and cash equivalents at end of period $ 627 $ 969