Note 7 - Investment in Affiliated Company (Detail) - NuGlow’s condensed balance sheets (USD $)	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Assets
Cash	$ 739,108	$ 1,688,945	$ 2,660,333	$ 4,044,309
Accounts receivable, net	219,141	239,773
Inventory	295,584	363,869
NuGlow [Member]
Assets
Cash	14,459	200
Accounts receivable, net	7,013	18,276
Inventory	178,539	275,838
Prepaid expenses and other current assets	15,770	9,513
Total assets	215,781	303,827
Liabilities and members’ equity
Accounts payable and current liabilities	261,456	280,867
Members’ equity and accumulated deficit	(45,675)	22,960
Total liabilities and members’ equity	$ 215,781	$ 303,827