Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 1,520,175	$ 1,120,943
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation and amortization	623,653	578,734
Deferred income taxes	(43,945)	(8,727)
Stock based compensation	356,085	318,110
Other operating non-cash items	29,868	132,499
Changes in assets and liabilities:
Trade accounts receivable	(1,838,350)	(4,059,225)
Inventories	(1,425,735)	649,554
Other assets	13,058	3,725
Prepaid expenses and other current assets	(182,650)	(135,127)
Receivables due from affiliated companies	46,805	113,516
Accounts payable and other accrued expenses	1,192,228	1,019,958
Net cash provided by (used in) operating activities	291,192	(266,040)
Cash flows from investing activities:
Purchases of property, plant and equipment	(675,734)	(475,362)
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	(825,734)	(635,362)
Cash flows from financing activities:
Net borrowings under revolving line of credit		300,000
Payments on long-term debt	(310,166)	(304,476)
Dividends paid to common shareholders	(440,016)
Proceeds from exercise of stock options	63,250	79,667
Net cash (used in) provided by financing activities	(686,932)	75,191
Effect of exchange rates on cash	(21,980)	(2,680)
Net decrease in cash	(1,243,454)	(828,891)
Cash at beginning of period	3,071,887	1,508,385
Cash at end of period	1,828,433	679,494
Supplemental disclosure of cash flow information:
Cash paid for interest during period	39,571	52,700
Cash paid for income taxes during period	840,000	701,100
Supplemental disclosure of noncash investing information:
Amounts due from joint venture partner released as part of acquisition of joint venture partner's interest in OdorStar	$ 305,905