Leases (Details 1) - USD ($) $ in Thousands	Dec. 26, 2020	Dec. 28, 2019
ROU assets - operating leases	$ 1,628	$ 2,133
ROU assets - finance leases	442	318
ROU assets	2,070	2,451
Current lease liabilities - operating leases	1,421	961
Current lease liabilities - finance leases	120	80
Noncurrent lease liabilities - operating leases	286	1,220
Noncurrent lease liabilities - finance leases	322	238
Total lease liabilities	2,149	2,499
Right of Use Asset
ROU assets - operating leases	1,628	2,133
Property and Equipment, Net
ROU assets - finance leases	$ 442	$ 318