Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities:
Net income/(loss)	$ 523,793	$ (43,660)
Adjustments to reconcile net income/(loss) to net cash provided by operating activities:
Depreciation and amortization	217,631	249,892
Stock-based compensation	8,444	18,142
Non-cash life insurance policy accretion	(30,135)	(29,244)
Deferred income taxes	5,000	(20,000)
Foreign currency transaction (gain)/loss	(36,133)	(100,053)
(Increase) decrease in accounts receivable and accounts due from employees and distributors	(138,452)	67,571
(Increase) decrease in inventories	268,776	316,870
(Increase) decrease in refundable income taxes	29,454	(4,933)
(Increase) decrease in prepaid expenses and other current assets	(353,515)	(605,781)
(Increase) decrease in other assets	(1,906)	18,697
Increase (decrease) in accounts payable & accrued expenses and other noncurrent liabilities	37,429	856,514
Net cash provided by operating activities	530,386	724,015
Investing activities:
Purchase of property, plant and equipment	(261,550)	(9,905)
Payments received on distributor note receivable	26,680	25,131
Net cash provided by (used in) investing activities	(234,870)	15,226
Financing activities:
Principal payments on long-term borrowings	(113,743)	(143,618)
Net cash used in financing activities	(113,743)	(143,618)
Effect of exchange rate changes on cash and cash equivalents	40,703	35,610
Increase (decrease) in cash and cash equivalents	222,476	631,233
Cash and cash equivalents at beginning of period	3,606,817	3,262,263
Cash and cash equivalents at end of period	$ 3,829,293	$ 3,893,496