Income Taxes (Details 2) - USD ($)	Dec. 31, 2016	Jan. 02, 2016
Deferred tax assets:
Net operating loss carryforward	$ 11,023,000	$ 10,860,000
Capital loss carryforward	811,000	808,000
Stock options and restricted stock	2,694,000	3,048,000
Inventory reserve	195,000	249,000
Allowance for doubtful accounts	425,000	144,000
Accrued expenses	487,000	277,000
Deferred revenue	13,000	0
Intangibles	29,000	23,000
Deferred rent	252,000	54,000
Deferred Tax Assets Gross	15,929,000	15,463,000
Less valuation allowance	(15,530,000)	(15,050,000)
Deferred Tax Assets Net	399,000	413,000
Deferred tax liabilities:
Leasehold improvements and equipment	(282,000)	(284,000)
Prepaid expenses	(117,000)	(129,000)
Deferred Income Tax Liabilities	(399,000)	(413,000)
Deferred Tax Liabilities	$ 0	$ 0