Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net loss	$ (945,108)	$ (1,153,731)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	98,050	75,445
Stock based compensation	45,920	124,695
Inventory net realizable adjustment	(13,489)	(11,645)
Provision for income tax withholding	2,563	12,941
PIK interest, net	61,320	78,811
Change in:
Accounts receivable	(160,298)	(166,910)
Inventories	(63,118)	(11,988)
Prepaid expenses, other current assets and other assets	(33,119)	7,741
Trade accounts payable and other current liabilities	13,359	(504,459)
Net cash used in operating activities	(993,920)	(1,549,100)
Cash flows from investing activities:
Purchases of property and equipment	(24,309)	(21,561)
Proceeds from repayments of note receivable		103,709
Purchases of patents and trademarks	(46,907)	(25,120)
Net cash (used in) provided by investing activities	(71,216)	57,028
Cash flows from financing activities:
Proceeds from exercise of stock options	87,600
Repayments of long-term debt and PIK interest		(5,999,000)
Proceeds from long-term debt	300,000	5,700,000
Net cash provided by (used in) financing activities	387,600	(299,000)
Net decrease in cash	(677,536)	(1,791,072)
Cash, beginning of year	1,164,057	2,955,129
Cash, end of year	486,521	1,164,057
Cash paid for:
Interest		83,422
Income Taxes	4,610	14,270
Non Cash Financing Activity:
Conversion of Series C Convertible Preferred Stock and related dividends into common stock	$ 36,529