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Balance Sheets (USD $)
Jun. 30, 2011
Dec. 31, 2010
Current assets:    
Cash and cash equivalents $ 1,015,230 $ 460,833
Restricted cash   710,797
Accounts receivable, net 1,525,070 813,569
Inventories 1,197,127 1,698,650
Prepaid expenses and other current assets 193,782 128,131
Total current assets 3,931,209 3,811,980
Property and equipment:    
Machinery and office equipment 2,151,549 2,140,897
Computer equipment 1,291,042 1,285,197
Property and equipment, gross 3,442,591 3,426,094
Accumulated depreciation (3,108,373) (2,954,757)
Property and equipment, net 334,218 471,337
Intangible assets, net 180,000 210,000
Goodwill 4,427,000 4,427,000
Other assets 98,243 146,298
Total assets 8,970,670 9,066,615
Current liabilities:    
Accounts payable 3,580,257 3,770,325
Accrued payroll and related expenses 647,281 634,146
Deferred income on shipments to distributors 792,039 673,484
Short term portion of deferred service revenue 290,712 324,267
Short term portion of capital leases and deferred rent 29,556 27,080
Senior convertible note payable, net of debt discount of $475,395 at June 30, 2011 and zero at December 31, 2010 299,605  
Total current liabilities 5,639,450 5,429,302
Long term portion of deferred service revenue 162,425 197,044
Long term portion of capital leases and deferred rent 187,193 202,072
Senior convertible note payable, net of debt discount of zero at June 30, 2011 and $670,447 at December 31, 2010   329,553
Deferred income taxes 31,485 15,515
Total liabilities 6,020,553 6,173,486
Stockholders’ equity:    
Common stock, $0.001 par value: Authorized shares – 10,000,000, Issued and outstanding shares – 4,244,528 at June 30, 2011 and 3,801,991 at December 31, 2010 4,245 3,802
Additional paid-in capital 59,048,047 57,671,065
Accumulated deficit (56,102,175) (54,781,738)
Total stockholders’ equity 2,950,117 2,893,129
Total liabilities and stockholders’ equity $ 8,970,670 $ 9,066,615