Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities:
Net income (loss)	$ (1,216,259)	$ 4,128
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	403,430	435,261
Stock-based compensation	15,069	16,888
Non-cash life insurance policy reduction / (accretion)	19,162	(60,270)
(Gain) loss on sale of property, plant and equipment	(2,838)	(11,361)
Deferred income taxes		10,000
Foreign currency transaction (gain) loss	(194)	(35,184)
(Increase) decrease in accounts receivable and accounts due from employees and distributors	(180,145)	40,767
(Increase) decrease in inventories	415,760	112,036
(Increase) decrease in refundable income taxes	3,616	68,516
(Increase) decrease in prepaid expenses and other current assets	(274,252)	(342,897)
(Increase) decrease in other assets	(948)	(24,907)
Increase (decrease) in income taxes payable	(6,930)
Increase (decrease) in accounts payable & accrued expenses and other noncurrent liabilities	568,291	126,216
Net cash provided by (used in) operating activities	(256,238)	339,193
Investing activities:
Purchase of property, plant and equipment	(56,968)	(403,910)
Proceeds from the sale of property, plant and equipment	3,888	11,900
Payments received on distributor note receivable	57,079	53,763
Net cash provided by (used in) investing activities	3,999	(338,247)
Financing activities:
Principal payments on long-term borrowings	(189,560)	(228,336)
Net cash used in financing activities	(189,560)	(228,336)
Effect of exchange rate changes on cash and cash equivalents	(66,901)	69,501
Increase (decrease) in cash and cash equivalents	(508,700)	(157,889)
Cash and cash equivalents at beginning of period	3,272,788	3,606,817
Cash and cash equivalents at end of period	$ 2,764,088	$ 3,448,928