Note 8 - Segment Information (Tables)

6 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Three Months Ended September 30, 2014	Medical			Industrial			Adjustments*			Consolidated
Net sales	$	3,267		$	843		$	-		$	4,110
Gross profit		1,023			235			-			1,258
Operating loss		(1,435	)		(6	)		-			(1,441	)
Interest expense, net		(106	)		-			-			(106	)
Depreciation and amortization		151			1			-			152
Stock-based compensation expense		186			9			-			195
Expenditures for fixed assets		(8	)		-			-			(8	)
As of September 30, 2014
Total assets		10,542			1,865			(2,358	)		10,049
Three Months Ended September 30, 2013
Net sales	$	3,399		$	569		$	-		$	3,968
Gross profit		981			214			-			1,195
Operating loss		(1,345	)		62			-			(1,283	)
Interest expense, net		(44	)		-			-			(44	)
Depreciation and amortization		170			3			-			173
Stock-based compensation expense		(221	)		(6	)		-			(227	)
Expenditures for fixed assets		46			-			-			46
As of September 30, 2013
Total assets		11,240			1,333			(1,840	)		10,733

Six Months Ended September 30, 2014	Medical			Industrial			Adjustments*		Consolidated
Net sales	$	6,327		$	1,535		$	-	$	7,862
Gross profit		1,921			486			-		2,407
Operating loss		(3,273	)		(46	)		-		(3,319	)
Interest expense, net		(189	)		-			-		(189	)
Depreciation and amortization		314			4			-		318
Stock-based compensation expense		328			21			-		349
Expenditures for fixed assets		17			-			-		17
Six Months Ended September 30, 2013
Net sales	$	6,428		$	1,192		$	-	$	7,620
Gross profit		1,774			501			-		2,275
Operating loss		(3,732	)		60			-		(3,672	)
Interest expense, net		(85	)		-			-		(85	)
Depreciation and amortization		355			7			-		362
Stock-based compensation expense		309			19			-		328
Expenditures for fixed assets		46			-			-		46

	As of September 30,
* Adjustments	2014			2013
Intercompany eliminations	$	(1,672	)	$	(1,154	)
Investment in subsidiaries		(686	)		(686	)
Total adjustments	$	(2,358	)	$	(1,840	)

Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]

	As of September 30,
* Adjustments	2014			2013
Intercompany eliminations	$	(1,672	)	$	(1,154	)
Investment in subsidiaries		(686	)		(686	)
Total adjustments	$	(2,358	)	$	(1,840	)