Note 6 - Segment Information (Details) - Segment Information (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014
Segment Reporting Information [Line Items]
Revenue from external customers	$ 748,593	$ 389,972	$ 1,372,267	$ 712,411
Segment operating income (loss)	128,786	(54,334)	164,519	(121,133)
Total assets	1,261,463		1,261,463		830,228
Chemical [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	341,121	290,294	638,279	540,074
Segment operating income (loss)	81,446	51,225	158,478	121,796
Total assets	583,740		583,740		613,406
Electronics [Member]
Segment Reporting Information [Line Items]
Revenue from external customers	407,472	99,678	733,988	172,337
Segment operating income (loss)	47,340	(105,559)	6,042	(242,929)
Total assets	$ 677,722		$ 677,722		$ 216,822