Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 460,694	$ 2,030,928
Adjustment to reconcile net income to net cash provided by operations:
Depreciation and amortization	916,317	843,116
Deferred income taxes	104,355	$ (37,648)
Loss on sale of property, plant and equipment	12,522
Stock based compensation	162,225	$ 356,085
Other operating noncash items	8,016	(17,664)
Changes in assets and liabilities:
Trade accounts receivable	(244,513)	(517,352)
Inventories	191,797	(716,439)
Prepaid expenses and other current assets	(91,487)	(210,843)
Receivables due from affiliated companies	(336,057)	(178,632)
Accounts payable and other accrued expenses	(384,016)	234,802
Net cash provided by operating activities	799,853	1,786,353
Cash flows from investing activities:
Purchases of property, plant and equipment	$ (997,761)	(830,817)
Cash paid for acquisition of joint venture partner's interest in OdorStar		$ (150,000)
Cash paid for patent and trademark registration	$ (11,902)
Sale of property, plant and equipment	55,000
Net cash used in investing activities	(954,663)	$ (980,817)
Cash flows from financing activities:
Payments on long-term debt	$ (437,988)	(414,524)
Dividends paid to common shareholders		(440,016)
Proceeds from exercise of stock options		63,250
Net cash used in financing activities	$ (437,988)	(791,290)
Effect of exchange rate on cash	(1,516)	(23,404)
Net (decrease) increase in cash	(594,314)	(9,158)
Cash at beginning of period	3,062,729	3,071,887
Cash at end of period	2,468,415	3,062,729
Supplemental disclosure of cash transactions:
Cash paid for interest during period	34,871	51,537
Cash paid for income taxes during period	$ 169,200	1,090,000
Supplemental disclosure of non-cash investing information:
Amounts due from joint venture partner released as part of acquisition of joint venture partner's interest in OdorStar		$ 305,905