Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net loss	$ (271,723)	$ (592,697)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	42,102	46,658
Stock based compensation expense	9,672	26,670
Inventory net realizable adjustment	(703)	(6,635)
Provision for income tax withholding	1,322	1,863
Right-of-use assets	19,779
PIK interest, net	37,513	29,058
Change in:
Accounts receivable, net	20,939	151,561
Inventories	39,343	17,587
Prepaid expenses and other current assets	(38,592)	(162,317)
Trade accounts payable and other current liabilities and lease liabilities payable	(84,872)	(9,330)
Net cash used in operating activities	(225,220)	(497,582)
Cash flows from investing activities:
Payments for patents and trademarks	(4,958)	(25,750)
Net cash used in investing activities	(4,958)	(25,750)
Cash flows from financing activities:
Proceeds from exercise of stock options		2,000
Proceeds from long-term notes	200,000	200,000
Net cash provided by financing activities	200,000	202,000
Net decrease in cash	(30,178)	(321,332)
Cash, beginning of year	486,521	1,164,057
Cash, end of period	456,343	842,725
Cash paid for:
Income Taxes	$ 1,330	$ 2,747