Note 10 - Income Taxes (Details) - Deferred Tax Assets and Deferred Tax Liabilities (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Mar. 31, 2013
Deferred tax assets
Accrued expenses	$ 162	$ 166
Allowance for doubtful accounts	49	49
Deferred revenue	569	510
Deferred stock compensation	594	646
Excess of straight line over actual rent	289	316
Investment	157	0
Other	129	127
Total gross deferred tax assets	1,949	1,814
Deferred tax liabilities
Deductible prepaid expense	302	223
Unrealized gain on marketable securities	83	202
Depreciation expense	1,692	321
Deductible business interruption expenses	293	0
Amortization	287	243
Total gross deferred tax liabilities	2,657	989
Net deferred tax (liability) asset	(708)	825
Less current portion	(26)	(345)
Long-term portion	$ (734)	$ 480