Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 32,380,674	$ 6,663,318
Accounts receivable, trade, net of allowance for doubtful accounts of $0 and $5,575 at September 30, 2018 and December 31, 2017, respectively	2,699,342	1,021,315
Inventories	2,910,927	1,846,746
Prepaid expenses and other current assets	298,005	399,502
Total current assets	38,288,948	9,930,881
Property and equipment
Leasehold improvements	1,284,491	1,284,491
Furniture and computer equipment	705,948	682,466
Manufacturing and other equipment	1,510,729	1,148,006
Subtotal	3,501,168	3,114,963
Less: Accumulated depreciation	(2,234,286)	(2,008,927)
Net property and equipment	1,266,882	1,106,036
Investment in SAVSU	6,856,980	1,070,120
Long term deposits	36,166	36,166
Total assets	46,448,976	12,143,203
Current liabilities
Accounts payable	1,089,553	690,702
Accrued expenses and other current liabilities	162,981	200,548
Accrued compensation	712,615	491,432
Deferred rent	130,216	130,216
Total current liabilities	2,095,365	1,512,898
Deferred rent, long-term	386,113	492,207
Other long-term liabilities	37,855	45,512
Total liabilities	2,519,333	2,050,617
Commitments and contingencies (Note 9)
Shareholders’ equity
Preferred stock, $0.001 par value; 1,000,000 shares authorized, Series A, 4,250 shares designated, and 3,187 and 4,250 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	3	4
Common stock, $0.001 par value; 150,000,000 shares authorized, 18,237,425 and 14,021,422 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	18,237	14,021
Additional paid-in capital	115,775,040	84,036,444
Accumulated deficit	(71,863,637)	(73,957,883)
Total shareholders’ equity	43,929,643	10,092,586
Total liabilities and shareholders’ equity	$ 46,448,976	$ 12,143,203