Share-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended				6 Months Ended			3 Months Ended		6 Months Ended		0 Months Ended			6 Months Ended			3 Months Ended	6 Months Ended								3 Months Ended	6 Months Ended
	Aug. 02, 2014	May 03, 2014	Aug. 03, 2013	May 04, 2013	Aug. 02, 2014 Equity_Plan	Aug. 03, 2013	Jan. 31, 2014	Aug. 02, 2014 Employee Stock Purchase Plan [Member]	Aug. 03, 2013 Employee Stock Purchase Plan [Member]	Aug. 02, 2014 Employee Stock Purchase Plan [Member]	Aug. 02, 2014 Non-Employee Director [Member]	Aug. 01, 2014 Chairman of Board [Member] Scenario, Forecast [Member]	Aug. 01, 2014 Chair of Audit Committee [Member] Scenario, Forecast [Member]	Aug. 01, 2014 Chair of Compensation Committee [Member] Scenario, Forecast [Member]	Aug. 02, 2014 Stock Option [Member]	Aug. 02, 2014 Equity Incentive Plan [Member]	Aug. 03, 2013 Equity Incentive Plan [Member]	Aug. 02, 2014 Equity Incentive Plan [Member] Non-Employee Director [Member]	Aug. 02, 2014 Equity Incentive Plan [Member] Non-Employee Director [Member]	Aug. 02, 2014 2013 Restricted Stock Units (RSUs) [Member] First Anniversary [Member]	Aug. 02, 2014 2013 Restricted Stock Units (RSUs) [Member] Second Anniversary [Member]	Aug. 02, 2014 2014 Restricted Stock Units (RSUs) [Member]	Aug. 02, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member]	Aug. 02, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member] Net Sales Target [Member]	Aug. 02, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member] ORONA Target [Member]	Aug. 02, 2014 2014 Restricted Stock Units (RSUs) [Member] Officer [Member] Third Anniversary [Member]	Aug. 02, 2014 2014 Restricted Stock Units (RSUs) [Member] Non-Employee Director [Member]	Aug. 02, 2014 Restricted Stock [Member] Non-Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plan					1
Award vesting period															4 years													12 months
Aggregate shares authorized for awards under the Plan																	1,000,000
Shares available for grant under the Plan																210,164
Restricted stock unit vested percentage																				50.00%	50.00%			50.00%	25.00%	25.00%
Maximum disposal restricted percentage of RSU					50.00%
Cumulative budgeted net sales target measurement period																							2014 through 2016
Option expiration period																			10 years
Stock options grant to each non-employee director					150,600														5,000
Non-employee director is entitled to an annual cash retainer					$ 7,000
Non-employee director is entitled to an annual cash retainer additional											500
Amount of Chair Retainer payable												6,000	4,000	4,000
Number of stock options grant to each non-employee director																		798									7,245
Non-employee director received restricted stock award value					20,000
Options granted weighted average fair value per share	$ 2.84	$ 2.93	$ 2.79	$ 2.79
Unrecognized compensation expense related to unvested options															568,000
Unrecognized compensation expense related to unvested options, recognize date															Through May 2018							Through April 2016
Unrecognized compensation expense related to unvested RSUs and RSAs																						$ 343,000
Employee Stock Purchase Plan discount rate										15.00%
Reservation of shares under Stock Purchase Plan					247,500
Shares purchase under Employee Stock Purchase Plan					1,592	2,266		777	1,054
Stock options granted	693,317				693,317		736,647	58,650		58,650