Annual report pursuant to Section 13 and 15(d)

Note 16 - Commitments and Contingencies (Details Textual)

v3.7.0.1
Note 16 - Commitments and Contingencies (Details Textual)
12 Months Ended
Jan. 05, 2017
ft²
Mar. 25, 2017
USD ($)
ft²
Mar. 26, 2016
USD ($)
Capital Leases, Balance Sheet, Assets by Major Class, Net   $ 249,000 $ 249,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation   61,000 $ 32,000
Long-term Purchase Commitment, Amount   $ 541,000  
San Ramon, CA [Member]      
Area of Real Estate Property | ft²   47,300  
Dublin, CA [Member] | Commercial Building Lease [Member]      
Lessee, Operating Lease, Term of Contract 77 years    
Area of Real Estate Property | ft² 23,873