Note 8 - Stock-Based Compensation Plans (Tables)

9 Months Ended

Dec. 31, 2012

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

	Three Months Ended December 31,				Nine Months Ended December 31,
	2012		2011		2012		2011
Cost of sales	$	16	$	8	$	43	$	34
Selling, general and administrative expenses		247		132		745		436
Stock-based compensation expense before income tax benefits	$	263	$	140	$	788	$	470

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Three Months Ended December 31,					Nine Months Ended December 31,
	2012			2011		2012			2011
Dividend yield		n/a			n/a		n/a			n/a
Weighted-average expected volatility		60.2	%		n/a		63.4	%		n/a
Risk-free interest rate		1.6	%		n/a		1.6	%		n/a
Expected life of options (in years)		5.3			n/a		5.3			n/a
Fair value of options granted	$	1.40			n/a	$	1.99			n/a

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

	Shares			Weighted Average Exercise Price		Remaining Weighted Average Contract Life (Years)		Aggregate Intrinsic Value
Outstanding at April 1, 2012		1,348,437		$	12.44		5.2	$	14
Granted		325,000		$	3.58
Exercised		-		$	-
Expired/forfeited		(168,187	)	$	9.63
Outstanding at December 31, 2012		1,505,250		$	10.86		5.8	$	1
Options exercisable at December 31, 2012		958,687		$	12.79		4.4	$	1
Expected to vest as of December 31, 2012		525,953		$	7.53		8.3	$	-

Schedule of Nonvested Share Activity [Table Text Block]

	Shares			Average Grant Date Fair Value
Outstanding at April 1, 2012		413,533		$	5.89
Granted		325,000		$	1.99
Vested		(157,720	)	$	4.22
Expired/forfeited		(34,250	)	$	5.36
Outstanding at December 31, 2012		546,563		$	4.09

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

	Shares			Weighted Average Grant Price
Outstanding at April 1, 2012		7,500		$	12.58
Granted		-		$	-
Vested		(1,875	)	$	12.58
Expired/forfeited		-		$	-
Outstanding at December 31, 2012		5,625		$	12.58
Expected to vest as of December 31, 2012		4,891		$	12.58