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Balance Sheets (USD $)
Dec. 31, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 390,513 $ 957,022
Accounts receivable, net 1,509,094 2,791,549
Inventories 941,067 1,461,052
Prepaid expenses and other current assets 129,434 218,862
Total current assets 2,970,108 5,428,485
Property and equipment:    
Machinery and office equipment 1,865,137 2,212,178
Computer equipment 1,204,957 1,324,696
Property and equipment, gross 3,070,094 3,536,874
Accumulated depreciation (2,727,323) (3,225,231)
Property and equipment, net 342,771 311,643
Intangible assets, net 90,000 150,000
Goodwill 4,427,000 4,427,000
Other assets 91,518 80,076
Total assets 7,921,397 10,397,204
Current liabilities:    
Accounts payable 3,697,209 3,266,764
Accrued expenses 74,554 94,554
Accrued payroll and related expenses 478,084 564,980
Bank line of credit 810,686 1,109,600
Deferred income on shipments to distributors 854,159 1,571,544
Short term note payable 95,289   
Related party convertible notes payable 750,000   
Short term portion of deferred service revenue 214,537 247,174
Short term portion of capital leases and deferred rent 17,400 17,731
Total current liabilities 6,991,918 6,872,347
Long term portion of deferred service revenue 153,877 167,476
Long term portion of capital leases and deferred rent 227,022 184,341
Deferred income taxes 79,395 47,455
Total liabilities 7,452,212 7,271,619
Stockholders’ equity:    
Common stock, $0.001 par value: Authorized – 10,000,000 shares, Issued and outstanding – 4,861,063 shares at December 31, 2012 and 4,832,079 shares at December 31, 2011 4,861 4,832
Additional paid-in capital 60,966,505 60,324,852
Accumulated deficit (60,502,181) (57,204,099)
Total stockholders’ equity 469,185 3,125,585
Total liabilities and stockholders’ equity $ 7,921,397 $ 10,397,204