Note 6 - Accrued Expenses (Tables)

12 Months Ended

Mar. 31, 2014

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	March 31,
	2014		2013
Salaries, wages and related items	$	1,448,502	$	1,272,183
Profit sharing		501,831		384,999
Health insurance		280,554		149,403
Warranty reserves		242,064		208,745
Other		119,583		104,670
Total	$	2,592,534	$	2,120,000