Note 4. Income Taxes (Tables)

12 Months Ended

Mar. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Fiscal Year Ended March 31,
	2013			2012
Federal statutory rate		-34	%		-34	%
State taxes, net of federal tax benefit		--	%		3	%
Permanent differences:
Incentive stock options		2	%		2	%
Effect of permanent differences		2	%		2	%
Increase in valuation allowance		32	%		29	%
Effective tax rate		--	%		--	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	March 31,
	2013			2012
Net operating loss carryforwards	$	24,310		$	21,942
Stock-based compensation		2,898			2,595
Nondeductible reserves		248			270
Depreciation and amortization		143			137
Capital loss carryforwards		7			373
Deferred debt cost		-			199
Other		352			312
Gross deferred tax asset		27,958			25,828
Valuation allowance		(27,958	)		(25,828	)
Net deferred tax asset	$	-		$	-