Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net loss	$ (1,903,341)	$ (696,912)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	810,442	900,126
Stock-based compensation	23,627	33,776
Non-cash life insurance policy reduction (accretion)	20,329	(120,540)
(Gain) loss on sale of property, plant and equipment	(684)	(8,844)
Deferred income taxes		508,000
Foreign currency transaction (gain)/loss	(32,577)	(20,659)
(Increase) decrease in accounts receivable and accounts due from employees and distributors	(377,466)	104,671
(Increase) decrease in inventories	(26,036)	15,472
(Increase) decrease in refundable income taxes	(3,840)	70,612
(Increase) decrease in prepaid expenses and other current assets	(75,941)	107,051
(Increase) decrease in other assets	(1,783)	(32,102)
Increase (decrease) in income taxes payable	30,909	12,616
Increase (decrease) in accounts payable & accrued expenses and other non-current liabilities	366,437	(1,030,062)
Net cash used in operating activities	(1,169,924)	(156,795)
Investing activities
Proceeds from sale of property, plant, and equipment	8,522	13,143
Purchase of property, plant, and equipment	(181,343)	(499,409)
Proceeds from redemption of life insurance policy	3,066,193
Payments received on distributor note receivable	115,892	109,160
Net cash provided by (used in) investing activities	3,009,264	(377,106)
Financing activities
Proceeds from revolving line of credit borrowings		500,000
Principal payments on long-term borrowings	(3,045,421)	(363,736)
Net cash provided by (used in) financing activities	(3,045,421)	136,264
Effect of exchange rate changes on cash and cash equivalents	(76,733)	63,608
Increase (decrease) in cash and cash equivalents	(1,282,814)	(334,029)
Cash and cash equivalents at beginning of year	3,272,788	3,606,817
Cash and cash equivalents at end of year	1,989,974	3,272,788
Supplemental disclosures of cash flow information:
Interest	99,000	99,800
Income taxes paid (received), net	$ 66,600	$ (52,500)