Note 12 - Quarterly Financial Data (Unaudited)

12 Months Ended

Mar. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

Note 12. Quarterly Financial Data (Unaudited)

	Fiscal Year Ended March 31, 2014
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter			Total
Net sales	$	3,652		$	3,968		$	4,507		$	4,981		$	17,108
Gross profit	$	1,080		$	1,195		$	1,378		$	845		$	4,498
Net loss	$	(2,434	)	$	(1,323	)	$	(1,562	)	$	(2,395	)	$	(7,714	)
Net loss per common share - basic and diluted	$	(0.05	)	$	(0.03	)	$	(0.03	)	$	(0.05	)	$	(0.17	)

	Fiscal Year Ended March 31, 2013
	First			Second			Third			Fourth
	Quarter			Quarter			Quarter			Quarter			Total
Net sales	$	3,396		$	3,739		$	3,952		$	4,200		$	15,287
Gross profit	$	913		$	1,070		$	1,132		$	1,227		$	4,342
Net loss	$	(2,647	)	$	(4,264	)	$	(1,577	)	$	(2,069	)	$	(10,557	)
Net loss per common share - basic and diluted	$	(0.06	)	$	(0.09	)	$	(0.03	)	$	(0.04	)	$	(0.23	)