Note 4 - Accrued Expenses (Tables)

12 Months Ended

Mar. 31, 2014

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	March 31,
	2014		2013
Interest payable—related party	$	253	$	70
Warranty reserve		230		280
Accrued accounts payable		108		63
Accrued other		96		75
Accrued accounting fees		90		100
Accrued legal fees		77		41
Sales tax payable		33		27
Accrued travel expenses		31		72
Accrued expenses	$	918	$	728