(2) Summary of Significant Accounting Policies (Detail) - (Table 2)	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accounting Policies [Abstract]
Basic	8,312,891	8,325,891	8,255,947	8,240,528
Dilutive effect of:
Options	1,131,767		1,178,871
Restricted stock	49,316	111,282	56,881	87,265
Warrants	2,454,070	2,453,982	2,454,216	2,453,696
Series D preferred stock	5,319,149	5,319,149	5,319,149	5,319,149
Diluted	17,267,193	16,210,304	17,265,064	16,100,638