Note 13 - Difference in Income Tax Provision (Details) (USD $)	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Year Ended March 31	$ 1,161,000	$ 904,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%	34.00%
Year Ended March 31	67,000	203,000
Year Ended March 31	2.00%	7.60%
Year Ended March 31	42,000	15,000
Year Ended March 31	1.20%	0.60%
Year Ended March 31	(364,000)
Year Ended March 31	(10.60%)
Year Ended March 31	(25,000)	70,000
Year Ended March 31	0.70%	2.60%
Year Ended March 31	$ 931,000us-gaap_IncomeTaxExpenseBenefit	$ 1,192,000us-gaap_IncomeTaxExpenseBenefit
Year Ended March 31	27.30%	44.80%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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