Note 7 - Income Taxes (Details) - Reconciliation of the Statutory Federal Income Tax Rate to Qualstar's Effective Rate	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Reconciliation of the Statutory Federal Income Tax Rate to Qualstar's Effective Rate [Abstract]
Statutory federal income tax benefit	(34.00%)	(34.00%)	(34.00%)
State income taxes, net of federal income tax benefit	(28.80%)	(3.70%)	(3.60%)
Engineering credits	(1.50%)	(1.10%)	(1.80%)
Valuation allowance	65.20%	39.20%	39.30%
Other	(0.90%)	(0.40%)	0.50%
	0.00%	0.00%	0.40%