BALANCE SHEETS - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 98,000	$ 4,000
Accounts receivable, net of allowance for doubtful accounts of $22,000 at December 31, 2020 and $34,000 at December 31, 2019	407,000	370,000
Inventory, net of allowance of $279,000 at December 31, 2020 and $291,000 at December 31, 2019	536,000	810,000
Prepaid expenses and other current assets	104,000	6,000
Right of use asset - operating leases	35,000	34,000
Total current assets	1,180,000	1,224,000
Property, plant and equipment, net	576,000	644,000
Patents, net	108,000	116,000
Right of use asset - operating leases	41,000	73,000
Other assets	21,000	21,000
Total assets	1,926,000	2,078,000
Current liabilities
Accounts payable	577,000	652,000
Accrued expenses and other current liabilities	620,000	518,000
Right of use liability - operating leases	33,000	34,000
Wages payable	107,000	104,000
Line of credit	277,000	337,000
PPP Loan	332,000	0
Current portion of long-term debt, net of deferred finance costs	75,000	42,000
Total current liabilities	2,021,000	1,687,000
Long-term debt, net of current portion and deferred finance costs	1,120,000	1,108,000
Right of use liability - operating leases	41,000	73,000
Total liabilities	3,182,000	2,868,000
COMMITMENTS AND CONTINGENCIES
Stockholders' deficit:
Preferred stock; par value $.01 per share; 5,000,000 shares authorized, none issued and outstanding	0	0
Common stock; par value $.01 per share; 50,000,000 shares authorized; 37,703,476 issued and outstanding as of December 31, 2020 and 32,680,984 issued and outstanding as of December 31, 2019	377,000	327,000
Additional paid-in capital	21,717,000	21,437,000
Accumulated deficit	(23,350,000)	(22,554,000)
Total stockholders' (deficit)	(1,256,000)	(790,000)
Total liabilities and stockholders' (deficit)	$ 1,926,000	$ 2,078,000