Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 1,884,123	$ 2,206,749
Receivables on government contracts	352,687	1,043,738
Prepaid expenses and other current assets	334,073	94,717
Total current assets	2,570,883	3,345,204
Property and equipment
Operating lease-right to use asset	383,467
Equipment	389,923	357,796
Leasehold improvements	21,306	21,306
Furniture & fixtures	43,174	43,174
Less: accumulated depreciation	(155,203)	(109,484)
Property and equipment, net	682,667	312,792
Intangible assets	140,660	140,428
Less: accumulated amortization	(91,106)	(75,241)
Intangible assets, net	49,554	65,187
Deferred tax assets	32,453	34,623
Total assets	3,335,557	3,757,806
Liabilities and shareholders' equity
Accrued payroll and payroll taxes	501,759	868,618
Accounts payable and accrued expenses	42,510	308,415
Accrued warranty expense	100,835	153,723
Lease obligation, current portion	124,354
Deferred revenue	35,173	39,824
Total current liabilities	804,631	1,370,580
Lease obligation, net of current portion	277,131
Other long-term liabilities		19,560
Total liabilities	1,081,762	1,390,140
Shareholders' equity:
Preferred stock, convertible, par value $.01 per share, authorized 5,000,000 shares, none issued and outstanding
Common stock, par value $.01 per share, authorized 60,000,000 shares, issued and outstanding 35,588,775 and 35,568,775 shares, respectively	355,889	355,689
Capital in excess of par value	10,124,721	10,106,344
Accumulated deficit	(8,226,815)	(8,094,367)
Total shareholders' equity	2,253,795	2,367,666
Total liabilities and shareholders' equity	$ 3,335,557	$ 3,757,806