SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended				3 Months Ended																		12 Months Ended	3 Months Ended
	Mar. 31, 2013 Group	Mar. 31, 2012	Dec. 31, 2012	May 30, 2012	Mar. 31, 2013 Africa [Member]	Mar. 31, 2012 Africa [Member]	Mar. 31, 2013 Asia [Member]	Mar. 31, 2012 Asia [Member]	Mar. 31, 2013 Europe [Member]	Mar. 31, 2012 Europe [Member]	Mar. 31, 2013 North America [Member]	Mar. 31, 2012 North America [Member]	Mar. 31, 2013 South America [Member]	Mar. 31, 2012 South America [Member]	Mar. 31, 2013 Cost of Goods Sold [Member]	Mar. 31, 2012 Cost of Goods Sold [Member]	Mar. 31, 2013 Research and Development Expense [Member]	Mar. 31, 2012 Research and Development Expense [Member]	Mar. 31, 2013 Selling, General and Administrative Expenses [Member]	Mar. 31, 2012 Selling, General and Administrative Expenses [Member]	Mar. 31, 2013 Stock Options [Member]	Mar. 31, 2012 Stock Options [Member]	Dec. 31, 2012 Stock Options [Member]	Mar. 31, 2013 1999 Stock Option Plan [Member] Stock Options [Member]	Mar. 31, 2013 2008 Stock Incentive Plan [Member] Stock Options [Member]	Dec. 31, 2008 2008 Stock Incentive Plan [Member] Stock Options [Member]
Basis of Presentation [Abstract]
Reverse stock split conversion ratio				1-for-8
Common stock outstanding before reverse stock split (in shares)				63,967,263
Common stock outstanding after reverse stock split (in shares)				7,995,918
Inventories [Abstract]
Raw materials	$ 1,406,094		$ 1,418,071
Work in process	762,401		561,530
Finished goods	432,994		508,470
Inventories	2,601,489		2,488,071
Earnings (Loss) Per Share [Abstract]
Reverse stock split conversion ratio				1-for-8
Common stock outstanding before reverse stock split (in shares)				63,967,263
Common stock outstanding after reverse stock split (in shares)				7,995,918
Summary of weighted average shares used for computation of basic and diluted earnings per share [Abstract]
Basic (in shares)	8,062,984	7,934,331
Diluted (in shares)	8,699,209	8,512,374
Summary of common share equivalent basis, used in diluted per share computations [Abstract]
1999 and 2008 Plan Stock Options (in shares)	636,225	578,043
Options and warrants excluded from calculation of diluted per common share equivalent because the effect would have been anti-dilutive (in shares)	118,360	198,278
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under the plan (in shares)																								375,000	750,000	625,000
Number of stock options outstanding under the plan (in shares)																					712,189		731,646	93,750	618,439
Maximum period of stock option issuance after adoption of SOP																								10 years
Increase in number of shares authorized (in shares)																									125,000
Number of stock options exercised under the plan (in shares)																					64,359				105,551
Options or shares still available to be issued (in shares)																									26,010
Weighted average estimated grant-date fair value of stock options granted (in dollars per share)	$ 4.08	$ 3.20
Assumptions made in calculating fair values of options [Abstract]
Expected term																					4 years 9 months 18 days	5 years
Expected volatility (in hundredths)																					100.91%	115.77%
Expected dividend yield (in hundredths)																					0.00%	0.00%
Risk-free interest rate (in hundredths)																					0.57%	0.36%
Stock options, number of shares [Roll forward]
Outstanding, beginning of period (in shares)																					731,646
Granted (in shares)	30,000																				46,360
Exercised (in shares)																					(64,359)				(105,551)
Forfeited/expired/cancelled (in shares)																					(1,458)
Outstanding, end of period (in shares)																					712,189		731,646	93,750	618,439
Exercisable, end of period (in shares)																					474,867
Stock options, outstanding, weighted average exercise price per share [Roll Forward]
Outstanding, beginning of period (in dollars per share)																					$ 2.12
Granted (in dollars per share)																					$ 5.48
Exercised (in dollars per share)																					$ 1.50
Forfeited/expired/cancelled (in dollars per share)																					$ 1.04
Outstanding, end of period (in dollars per share)																					$ 2.39		$ 2.12
Exercisable, end of period (in dollars per share)																					$ 1.60
Stock options, additional disclosure [Abstract]
Outstanding, weighted average remaining contractual term, beginning of period																					2 years 4 months 2 days		2 years 2 months 9 days
Outstanding, weighted average remaining contractual term, end of period																					2 years 4 months 2 days		2 years 2 months 9 days
Exercisable, weighted average remaining contractual term, end of period																					1 year 7 months 10 days
Outstanding, aggregate intrinsic value, beginning of period																					3,460,686
Outstanding, aggregate intrinsic value, end of period																					1,892,082		3,460,686
Exercisable, aggregate intrinsic value, end of period																					1,637,100
Net unrecognized compensation cost																					356,000
Weighted average period for recognition of net unrecognized compensation cost (in years)																					9 months 18 days
Total fair value of stock options vested during period																					90,000	104,000
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated share-based compensation expense	138,000	133,000													30,000	15,000	40,000	48,000	68,000	70,000
Revenues from External Customers [Line Items]
Number of product groups	1
Net product sales	6,313,190	6,363,152			847,322	1,077,736	19,266	12,478	7,605	25,578	2,819,519	2,720,760	2,619,478	2,526,600
Summary of accounts payable and accrued liabilities [Abstract]
Accounts payable - suppliers	1,452,610		1,686,431
Accrued commissions	262,549		238,150
Accrued royalties / license fees	758,047		583,923
Accrued payroll	158,173		262,439
Accrued vacation	217,008		181,636
Accrued bonuses	162,750		155,663
Accrued expenses - other	178,524		195,681
TOTAL	$ 3,189,661		$ 3,303,923