Consolidated Statements of Operations (USD $)	3 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Revenue:
Contract services	$ 76,302	$ 302,228
Product sales	1,238,758	2,253,096
Total Revenues	1,315,060	2,555,324
Operating costs and expenses:
Costs of contract services	45,570	189,316
Costs of product sales	681,595	1,401,936
Research and development	4,163	119,319
Production engineering	1,574,823	803,634
Reimbursement of costs under DOE grant	(1,121,636)
Selling, general and administrative	1,189,603	822,841
Gain on sale of long-lived asset		(1,004)
Total Costs and Expenses	2,374,118	3,336,042
Loss before other income (expense)	(1,059,058)	(780,718)
Other income (expense):
Interest income	15,254	28,708
Other	261	265,140
Total nonoperating income (expense)	15,515	293,848
Net loss	$ (1,043,543)	$ (486,870)
Net loss per common share - basic and diluted	$ (0.03)	$ (0.01)
Weighted average number of shares of common stock outstanding - basic and diluted	36,222,217	35,947,430