Quarterly report pursuant to Section 13 or 15(d)

Balance Sheets

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Balance Sheets (USD $)
Mar. 31, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 8,350,325 $ 9,925,967
Restricted cash 25,771 61,763
Accounts receivables, net 55,430 69,795
Inventory, net 117,266 124,178
Prepaid expenses and other current assets 210,499 221,838
Total current assets 8,759,291 10,403,541
Property and equipment, net 63,619 84,591
Total assets 8,822,910 10,488,132
Current liabilities:    
Accounts payable and accrued expenses 1,082,214 1,157,520
Short term notes payable 67,281 47,977
Deferred revenue 24,114 50,989
Total current liabilities 1,173,609 1,256,486
Shareholders' equity:    
Preferred stock, no par value; 20,000,000 shares authorized; none issued and outstanding      
Common stock, $0.001 par value; 50,000,000 shares authorized; 27,489,080 and 27,382,830 shares issued and outstanding at March 31, 2013 and December 31, 2012, respectively 27,489 27,383
Additional paid-in capital 63,298,134 63,290,625
Accumulated deficit (55,676,322) (54,086,362)
Total shareholders' equity 7,649,301 9,231,646
Total liabilities and shareholders' equity $ 8,822,910 $ 10,488,132