Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 992,460	$ 858,868
Receivables on government contracts	1,533,784	1,704,301
Prepaid expenses and other current assets	77,104	55,144
Total current assets	2,603,348	2,618,313
Property and equipment
Equipment	113,478	95,693
Leasehold improvements	21,306
Furniture & fixtures	37,557	16,394
Less: accumulated depreciation	(93,501)	(86,436)
Property and equipment, net	78,840	25,651
Intangible assets	133,625	128,916
Less: accumulated amortization	(43,524)	(32,947)
Intangible assets, net	90,101	95,969
Deferred tax assets	141,832	204,991
Total assets	2,914,121	2,944,924
Current liabilities:
Accrued payroll and payroll taxes	516,856	460,434
Accounts payable and accrued expenses	292,068	338,872
Accrued warranty expense		240,980
Deferred revenue	25,000	7,500
Total current liabilities	833,924	1,047,786
Long-term liabilities	139,343	140,377
Total liabilities	973,267	1,188,163
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 35,546,775 and 35,424,775 shares, respectively	355,469	354,249
Capital in excess of par value	10,078,235	10,061,894
Accumulated deficit	(8,492,850)	(8,659,382)
Total shareholders' equity	1,940,854	1,756,761
Total liabilities and shareholders' equity	$ 2,914,121	$ 2,944,924