Long-term Debt (Details) $ in Thousands			12 Months Ended
	Jan. 29, 2016 USD ($)	Dec. 30, 2015 USD ($)	Dec. 31, 2017 USD ($) Tranche	Dec. 31, 2016 USD ($)
Long-term Debt [Abstract]
Less: current portion			$ (2,387)	$ (1,714)
Total long-term debt			7,853	9,752
Term-Note Credit Facility [Member]
Long-term Debt [Abstract]
Term note, net of debt discount of $160 and $258, respectively; and deferred financing cost of $171 and $276, respectively			10,240	11,466
Less: current portion			(2,387)	(1,714)
Total long-term debt			7,853	9,752
Unamortized discount on the long term debt			160	258
Deferred financing costs			171	$ 276
Maturities of Long-term Debt [Abstract]
2018			2,387
2019			4,092
2020			4,092
Total long-term debt			10,571
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member]
Long-term Debt [Abstract]
Maximum borrowing capacity under the agreement			$ 12,000
Number of tranches | Tranche			2
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | LIBOR [Member]
Long-term Debt [Abstract]
Debt instrument variable rate			8.25%
Debt instrument term of variable rate			1 month
Interest rate			9.61%
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | LIBOR [Member] | Minimum [Member]
Long-term Debt [Abstract]
LIBOR floor rate			0.50%
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | First Tranche [Member]
Long-term Debt [Abstract]
Proceeds from credit facility		$ 10,500
Repayment of debt		$ (10,000)
MidCap Financial Trust [Member] | Term-Note Credit Facility [Member] | Second Tranche [Member]
Long-term Debt [Abstract]
Proceeds from credit facility	$ 1,500