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Consolidated Statements of Cash Flows (Unaudited) (USD $)
 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Cash flows from operating activities:    
Net loss $ (160,000) $ (1,716,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation 131,000 95,000
Loss on disposal of fixed assets 57,000 12,000
Provision for bad debts 225,000  
Provision for (recovery of) obsolete inventory 25,000 (23,000)
Stock-based compensation expense 117,000 85,000
(Increase) decrease in:    
Trade accounts receivable 1,502,000 6,179,000
Other accounts receivable (23,000) 515,000
Inventory (1,720,000) 43,000
Prepaids 217,000 (729,000)
Other assets (246,000) 12,000
Increase (decrease) in:    
Accounts payable (191,000) (3,000,000)
Accrued expenses (755,000) (161,000)
Cash provided by (used in) continuing operations (821,000) 1,312,000
Cash provided by discontinued operations   601,000
Net cash provided by operating activities (821,000) 1,913,000
Cash flows from investing activities:    
Purchase of property and equipment (144,000) (120,000)
Sale of property and equipment   6,000
Increase in restricted cash (1,000)  
Net cash used in investing activities (145,000) (114,000)
Effect of exchange rate changes on cash 43,000 52,000
Net increase (decrease) in cash and cash equivalents (923,000) 1,851,000
Cash and cash equivalents, beginning of period 11,422,000 12,484,000
Cash and cash equivalents, end of period 10,499,000 14,335,000
Cash paid for interest      
Cash paid for income taxes