Note 7 - Related Party Transaction (Details Textual) - JST Capital LLC [Member] - Carousel Facilities [Member] - USD ($)	3 Months Ended	6 Months Ended
	Oct. 01, 2017	Oct. 01, 2017
Operating Leases, Rent Expense, Net	$ 15,000	$ 15,000
Cost of Sales [Member]
Operating Leases, Rent Expense, Net	13,000	13,000
Selling, General and Administrative Expenses [Member]
Operating Leases, Rent Expense, Net	$ 2,000	$ 2,000