Note 7 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Income (loss) from operations before income taxes, amount	$ 845,000	$ (1,346,000)
Income (loss) from operations before income taxes, percent pretax income	100.00%	100.00%
Computed “expected” income tax benefit on loss from operations before income taxes, amount	$ 287,000	$ (538,000)
Computed “expected” income tax benefit on loss from operations before income taxes, percent pretax income	34.00%	40.00%
State tax, net of federal benefit, amount	$ 50,000	$ (73,000)
State tax, net of federal benefit, percent pretax income	6.00%	5.00%
Tax credits, percent pretax income	0.00%	0.00%
Change in valuation allowance, amount	$ (337,000)	$ 626,000
Change in valuation allowance, percent pretax income	(40.00%)	(47.00%)
Permanent differences, amount		$ 1,000
Permanent differences, percent pretax income	0.00%	0.00%
Return to provision adjustments, percent pretax income	0.00%	0.00%
Change in state tax rate, amount
Change in state tax rate, percent pretax income	0.00%	0.00%
Other, net, amount	$ 5,000	$ (12,000)
Other, net, percent pretax income	0.00%	0.00%
	$ 5,000	$ 0
Income tax expense, percent pretax income	0.00%	0.00%