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Balance Sheets - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 938,155 $ 632,631
Accounts receivable, net 2,358,883 1,896,701
Inventories 1,326,090 957,327
Prepaid expenses and other current assets 87,556 125,707
Total current assets 4,710,684 3,612,366
Property and equipment:    
Machinery and office equipment 2,124,297 2,025,397
Computer equipment 1,049,234 984,099
Property and equipment, gross 3,173,531 3,009,496
Accumulated depreciation (2,698,828) (2,764,964)
Property and equipment, net $ 474,703 $ 244,532
Intangible assets, net
Goodwill $ 4,427,000 $ 4,427,000
Other assets 75,918 85,918
Total assets 9,688,305 8,369,816
Current liabilities:    
Accounts payable and accrued expenses 2,214,467 3,007,048
Accrued payroll and related expenses $ 602,888 528,155
Bank line of credit 815,981
Net deferred revenue on shipments to distributors $ 1,004,260 $ 978,555
Customer deposit 640,440
Related party and other short term notes payable 500,000 $ 600,000
Related party convertible notes payable-current portion 380,696 380,696
Short term portion of deferred service revenue 85,578 131,344
Short term portion of capital leases and deferred rent 24,440 25,102
Total current liabilities 5,452,769 6,466,881
Related party convertible notes payable 371,929 371,929
Long term portion of deferred service revenue 39,800 83,301
Long term portion of capital leases and deferred rent 305,016 275,589
Deferred income taxes 175,214 143,274
Total liabilities 6,344,728 7,340,974
Stockholders’ equity:    
Common stock, $0.001 par value: Authorized – 20,000,000 shares, Issued and outstanding – 5,620,455 shares at December 31, 2015 and 5,403,851 shares at December 31, 2014 5,620 5,404
Additional paid-in capital 62,210,842 61,713,995
Accumulated deficit (58,872,885) (60,690,557)
Total stockholders’ equity 3,343,577 1,028,842
Total liabilities and stockholders’ equity $ 9,688,305 $ 8,369,816