Balance Sheets - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash	$ 688,000	$ 400,800
Accounts receivable less $5,000 allowance for doubtful accounts	1,352,300	579,000
Inventory	127,900	133,500
Prepaid and other	135,000	43,600
Total current assets	2,303,200	1,156,900
Fixed assets
Leasehold improvements	24,200	19,700
Furniture, fixtures and equipment	252,500	185,400
Fixed assets, gross	276,700	205,100
Less: accumulated depreciation and amortization	206,600	197,600
Total fixed assets	70,100	7,500
Other assets
Long-term receivables	957,000	1,352,200
Operating lease right of use - building	202,000
Other assets	1,159,000	1,352,200
Total assets	3,532,300	2,516,600
Current liabilities
Convertible debentures	97,900	128,300
Accounts payable	44,300	16,500
Accrued expenses	231,600	163,000
Income taxes	52,400	38,600
Operating lease liability - current	41,700
Total current liabilities	467,900	346,400
Other liabilities
Accrued expenses, non-current	67,000	94,700
Deferred income taxes	47,400	108,800
Operating lease liability - non-current	160,300
Total other liabilities	274,700	203,500
Commitments and contingencies
Stockholders' equity
Series A preferred stock, $1.00 par value, Authorized - 300,000 shares, Issued and outstanding - none
Common stock, $0.01 par value Authorized - 75,000,000 shares, Issued and outstanding - 2019 - 61,044,698 shares; 2018 - 58,616,716 shares	610,400	586,200
Paid-in capital	12,483,900	12,440,000
Accumulated deficit	(10,304,600)	(11,059,500)
Total stockholders' equity	2,789,700	1,966,700
Total liabilities and stockholders' equity	$ 3,532,300	$ 2,516,600