Note 5 - Loss Per Share (Detail) - Schedule of Earnings Per Share Reconciliation (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Basic net income (loss) per share computation:
Net income (loss) attributable to common stockholders (in Dollars)	$ (545,177)	$ 97,431	$ (1,643,682)	$ 119,952
Weighted-average common shares outstanding	2,912,516	2,652,864	2,776,643	2,650,032
Incremental shares attributable to the assumed exercise of outstanding stock options	0	53,214	0	68,688
Total adjusted weighted-average shares	2,912,516	2,706,078	2,776,643	2,718,720
Diluted net income (loss) per share attributable to common stockholders (in Dollars per share)	$ (0.19)	$ 0.04	$ (0.59)	$ 0.04
Basic net income (loss) per share attributable to common stockholders (in Dollars per share)	$ (0.19)	$ 0.04	$ (0.59)	$ 0.05