(3) Union Capital Financing (Detail) - (Table 3) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011
Total [Member]
Balances at,	$ 6,659,499	$ 7,212,156	$ 6,659,499	$ 7,212,156	$ 6,323,840	$ 5,574,666	$ 7,314,575	$ 7,345,500
Fair value adjustments	196,809	(272,282)	808,511	(430,267)
Accretion	138,850	169,863	276,322	296,923
Senior Notes Fair value Level 3 [Member]
Balances at,		2,500,000		2,500,000			2,500,000	2,500,000
Warrants Fair Value Level 3 [Member]
Balances at,	3,813,830	2,409,574	3,813,830	2,409,574	3,617,021	3,005,319	2,680,150	2,837,143
Fair value adjustments	196,809	(270,576)	808,511	(427,569)
Put Derivative Fair Value Level 3 [Member]
Balances at,		2,574		2,574			4,280	5,272
Fair value adjustments		(1,706)		(2,698)
Series D Preferred Stock Fair Value Level 3 [Member]
Balances at,	2,845,669	2,300,008	2,845,669	2,300,008	2,706,819	2,569,347	2,130,145	2,003,085
Accretion	$ 138,850	$ 169,863	$ 276,322	$ 296,923