v3.19.2
Condensed Consolidated Balance Sheets - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Current Assets:    
Cash $ 10,123,186 $ 15,538,849
Marketable securities 3,032,386 2,878,664
Accounts receivable and other receivables, net 252,648 168,169
Inventory, net 1,649,557 1,235,334
Prepaid expenses and other current asset 675,745 839,520
Total Current Assets 15,733,522 20,660,536
Property and equipment, net 562,649 383,567
Operating lease right-of-use asset 413,004 439,308
Intangible assets, net 90,553 95,852
Other assets 67,077 71,198
Total Assets 16,866,805 21,650,461
Current Liabilities:    
Accounts payable 2,232,517 2,582,196
Accrued expenses 963,186 1,544,921
Accrued issuable equity 293,514 318,493
Notes payable 10,000 287,966
Current portion of operating lease liabilities 214,248 151,997
Current portion of deferred revenue 259,295 357,048
Total Current Liabilities 3,972,760 5,242,621
Operating lease liabilities, non-current portion 239,858 299,733
Deferred revenue, non-current portion 5,387 13,878
Total Liabilities 4,218,005 5,556,232
Series B Convertible Preferred Stock, 10,000 shares designated, 0 issued and outstanding as of June 30, 2019 and December 31, 2018
Commitments and contingencies (Note 10)
Stockholders' Equity:    
Common stock, $0.001 par value, 500,000,000 shares authorized, 26,236,804 and 26,118,075 shares issued and outstanding as of June 30, 2019 and December 31, 2018, respectively 26,237 26,118
Additional paid-in capital 176,468,879 175,924,587
Accumulated other comprehensive income 141,007
Accumulated deficit (163,987,328) (159,856,481)
Total Stockholders' Equity 12,648,800 16,094,229
Total Liabilities and Stockholders' Equity 16,866,805 21,650,461
Series A Convertible Preferred Stock [Member]    
Stockholders' Equity:    
Preferred stock, $0.001 par value, 40,000,000 shares authorized;
Series C Convertible Preferred Stock [Member]    
Stockholders' Equity:    
Preferred stock, $0.001 par value, 40,000,000 shares authorized;
Series D Convertible Preferred Stock [Member]    
Stockholders' Equity:    
Preferred stock, $0.001 par value, 40,000,000 shares authorized; $ 5 $ 5

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