BASIC AND DILUTED INCOME AND LOSS PER COMMON SHARE (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
BASIC AND DILUTED INCOME AND LOSS PER COMMON SHARE
Net income (loss)	$ (240,697)	$ 10,310
Weighted-average shares - basic (in shares)	8,210,100	8,168,067
Effect of dilutive potential common shares		9,786
Weighted-average shares - diluted (in shares)	8,210,100	8,177,853
Net income (loss) per share-basic (in dollars per share)	$ (0.03)	$ 0.00
Net income (loss) per share-diluted (in dollars per share)	$ (0.03)	$ 0.00
Antidilutive employee stock options (in shares)	547,000	735,214