Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Numerator:
Net income-numerator for net income per common share and net income per common share assuming dilution	$ 1,518	$ 1,928	$ 4,099	$ 5,501
Denominator:
Denominator for net income per common share — weighted average shares	8,723	8,691	8,722	8,631
Effect of dilutive securities:
Stock options (in shares)	23	260	67	244
Denominator for net income per common share, assuming dilution:
Adjusted weighted average shares and assumed exercises	8,746	8,951	8,789	8,875
Anti-dilutive shares
Number of anti-dilutive shares	1,014	193	702	129