Note 2 - Significant Accounting Policies (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Note 2 - Significant Accounting Policies (Details) [Line Items]
Product Warranty Expense (in Dollars)		$ 500
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	5,600,000	0
Electronic Products [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Warranty Term	90 days
Electronic Controllers for Spas and Hot Tubs [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Warranty Term	5 years
Maximum [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Product Warranty Expense (in Dollars)	$ 500