Note 11 - Segment Information (Details) - Segment Information (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Revenue from external customers	$ 1,580,841	$ 2,315,960
Segment operating income (loss)	(538,280)	(194,588)
Total assets	907,735	1,336,450
Chemical [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	1,084,075	968,308
Segment operating income (loss)	5,803	112,354
Total assets	589,739	540,349
Electronics [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	496,766	1,347,652
Segment operating income (loss)	(544,083)	(306,942)
Total assets	$ 317,996	$ 796,101