Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands		Sep. 27, 2016	Sep. 30, 2015
Current [Member]
Deferred assets (liabilities):
Tax effect of net operating loss carry-forward		$ 0	$ 0
General business credits		0	0
Partnership/Joint Venture basis differences		0	0
Deferred revenue		0	0
Property and equipment basis differences		0	0
Intangibles basis difference		0	0
Other accrued liability and asset difference		112	66
Net deferred tax assets		112	66
Less valuation allowance	[1]	(112)	(66)
Net deferred tax assets		0	0
Long Term [Member]
Deferred assets (liabilities):
Tax effect of net operating loss carry-forward		2,926	2,948
General business credits		680	201
Partnership/Joint Venture basis differences		(15)	84
Deferred revenue		79	88
Property and equipment basis differences			7
Property and equipment basis differences		(567)
Intangibles basis difference		(190)	(225)
Other accrued liability and asset difference		1,199	332
Net deferred tax assets		4,112	3,435
Less valuation allowance	[1]	(4,112)	(3,435)
Net deferred tax assets		$ 0	$ 0

[1] The valuation allowance increased by $723,000 during the year ended September 27, 2016.