CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Mar. 31, 2010	$ 149,465	$ 36,178,126	$ (26,617,161)	$ (495,903)	$ 9,214,527
Balance (in shares) at Mar. 31, 2010	14,946,540
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from public offering	46,000	14,871,059	0	0	14,917,059
Proceeds from public offering (in shares)	4,600,000
Share-based consulting and compensation expense	729	433,425	0	0	434,154
Share-based consulting and compensation expense (in shares)	72,900
Proceeds from exercise of warrants, net of costs	8,860	2,190,322	0	0	2,199,182
Proceeds from exercise of warrants, net of costs (in shares)	886,000
Proceeds from exercise of stock options	1,589	341,436	0	0	343,025
Proceeds from exercise of stock options (in shares)	158,892
Comprehensive income (loss)	0	0	(4,648,303)	169,005	(4,479,298)
Balance at Mar. 31, 2011	206,643	54,014,368	(31,265,464)	(326,898)	22,628,649
Balance (in shares) at Mar. 31, 2011	20,664,332
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based consulting and compensation expense	502	684,417	0	0	684,919
Share-based consulting and compensation expense (in shares)	50,200
Proceeds from exercise of stock options	940	207,885	0	0	208,825
Proceeds from exercise of stock options (in shares)	94,000
Comprehensive income (loss)	0	0	(4,250,371)	(37,267)	(4,287,638)
Balance at Mar. 31, 2012	208,085	54,906,670	(35,515,835)	(364,165)	19,234,755
Balance (in shares) at Mar. 31, 2012	20,808,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based consulting and compensation expense	1,571	810,068	0	0	811,639
Share-based consulting and compensation expense (in shares)	157,050
Proceeds from exercise of stock options	400	149,600	0	0	150,000
Proceeds from exercise of stock options (in shares)	40,000
Comprehensive income (loss)	0	0	(3,305,146)	(205,012)	(3,510,158)
Balance at Mar. 31, 2013	$ 210,056	$ 55,866,338	$ (38,820,981)	$ (569,177)	$ 16,686,236
Balance (in shares) at Mar. 31, 2013	21,005,582