Condensed Balance Sheets - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 99,000	$ 113,000
Accounts receivable, net of allowance for doubtful accounts of $36,000 at June 30, 2019 and $36,000 at December 31, 2018	393,000	452,000
Inventory, net of allowance of $280,000 at June 30, 2019 and $268,000 at December 31, 2018	825,000	1,019,000
Prepaid expenses and other current assets	1,000	29,000
Right of use asset - operating leases	19,000	0
Total current assets	1,337,000	1,613,000
Property, plant and equipment, net	681,000	718,000
Patents, net	119,000	123,000
Right of use asset - operating leases	7,000	0
Other assets	21,000	21,000
Total assets	2,165,000	2,475,000
Current liabilities
Accounts payable	555,000	359,000
Accrued expenses and other current liabilities	443,000	449,000
Right of use liability - operating leases	19,000	0
Wages payable	141,000	278,000
Line of credit	378,000	502,000
Current portion of long-term debt, net of deferred finance costs	1,040,000	237,000
Total current liabilities	2,576,000	1,825,000
Long-term debt/other liabilities, net of current portion and deferred finance costs	1,000	796,000
Right of use liability - operating leases	7,000	0
Total liabilities	2,584,000	2,621,000
COMMITMENTS AND CONTINGENCIES
Stockholders' equity:
Preferred stock; par value $.01 per share; 5,000,000 shares authorized, none issued and outstanding at June 30, 2019 and December 31, 2018	0	0
Common stock; par value $.01 per share; 50,000,000 shares authorized; 32,545,776 issued and outstanding at June 30, 2019 and 32,279,368 issued and outstanding as of December 31, 2018	325,000	323,000
Additional paid-in capital	21,425,000	21,404,000
Accumulated deficit	(22,169,000)	(21,873,000)
Total stockholders' equity	(419,000)	(146,000)
Total liabilities and stockholders' equity	$ 2,165,000	$ 2,475,000