Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 2,030,928	$ 1,435,268
Adjustment to reconcile net income to net cash provided by operations:
Depreciation and amortization	843,116	782,962
Deferred income taxes	(37,648)	(1,287)
Stock based compensation	356,085	318,110
Other operating noncash items	(17,664)	61,824
Changes in assets and liabilities:
Trade accounts receivable	(517,352)	(1,502,797)
Inventories	(716,439)	1,858,393
Other assets	12,833	(106,453)
Prepaid expenses and other current assets	(223,676)	(90,802)
Receivables due from affiliated companies	(178,632)	19,649
Accounts payable and other accrued expenses	234,802	(209,403)
Net cash provided by operating activities	1,786,353	2,565,464
Cash flows from investing activities:
Purchases of property, plant and equipment	(830,817)	(512,569)
Cash paid for acquisition of joint venture partner's interest in OdorStar	(150,000)
Purchase of royalty rights		(160,000)
Net cash used in investing activities	(980,817)	(672,569)
Cash flows from financing activities:
Payments on long-term debt	(414,524)	(407,095)
Dividends paid to common shareholders	(440,016)
Proceeds from exercise of stock options	63,250	79,667
Net cash used in financing activities	(791,290)	(327,428)
Effect of exchange rate on cash	(23,404)	(1,965)
Net (decrease) increase in cash	(9,158)	1,563,502
Cash at beginning of period	3,071,887	1,508,385
Cash at end of period	3,062,729	3,071,887
Supplemental disclosure of cash transactions:
Cash paid for interest during period	51,537	68,327
Cash paid for income taxes during period	1,090,000	763,100
Supplemental disclosure of non-cash investing information:
Issuance of note receivable for amounts due		111,420
Amounts due from joint venture partner released as part of acquisition of joint venture partner's interest in OdorStar	$ 305,905