Stockholders' Equity - Restricted Stock Units (Details) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended								12 Months Ended
	Mar. 31, 2018 USD ($) item $ / shares shares	Mar. 31, 2017 USD ($) item $ / shares shares	Feb. 01, 2020 USD ($)	Nov. 02, 2019 USD ($)	Aug. 03, 2019 USD ($)	May 04, 2019 USD ($)	Feb. 02, 2019 USD ($)	Nov. 03, 2018 USD ($)	Aug. 04, 2018 USD ($)	May 05, 2018 USD ($)	Feb. 01, 2020 USD ($) item shares	Feb. 02, 2019 USD ($) item	Feb. 03, 2018 USD ($) item
Stockholders' Equity
Income tax expense (benefits)			$ 2,154	$ (122)	$ 147	$ 1,286	$ 1,802	$ (237)	$ 788	$ 2,601	$ 3,465	$ 4,954	$ 8,926
Restricted Stock
Stockholders' Equity
Granted (in shares) | shares											122,816
Compensation expense											$ 2,100	2,200	1,600
Income tax expense (benefits)											83	$ (140)	$ (70)
March 2018 RSU
Stockholders' Equity
Granted (in shares) | shares	8,400
Percentage of vesting upon achieving specific performance	33.00%
Number of consecutive period for which closing stock price should be achieved to vest shares	20 days
First target price for vesting of shares (in dollars per share) | $ / shares	$ 30.44
Second target price for vesting of shares (in dollars per share) | $ / shares	35.01
Third target price for vesting of shares (in dollars per share) | $ / shares	$ 40.26
Expiration period	3 years
Compensation expense	$ 137
Number of thresholds achieved | item												1
Number of employees to whom awards are granted who subsequently resigned | item	1
March 2018 EBITDA RSU
Stockholders' Equity
Granted (in shares) | shares	8,401
Number of employees to whom awards are granted | item	1
Percentage of vesting upon achieving specific performance	33.00%
Expiration period	3 years
Compensation expense											$ 0	$ 78
Number of thresholds achieved | item											0	0
Trailing month EBITDA should be achieved to vest shares under the share based compensation plan	12 months
First adjusted EBITDA level for vesting of shares under the share based compensation plan	$ 51,400
Second adjusted EBITDA level for vesting of shares under the share based compensation plan	59,100
Third adjusted EBITDA level for vesting of shares under the share based compensation plan	$ 67,900
March 2017 RSU
Stockholders' Equity
Granted (in shares) | shares		23,551
Number of employees to whom awards are granted | item		2
Percentage of vesting upon achieving specific performance		25.00%
Number of consecutive period for which closing stock price should be achieved to vest shares		20 days
First target price for vesting of shares (in dollars per share) | $ / shares		$ 19.10
Second target price for vesting of shares (in dollars per share) | $ / shares		21.70
Third target price for vesting of shares (in dollars per share) | $ / shares		24.30
Fourth target price for vesting of shares (in dollars per share) | $ / shares		$ 26.90
Expiration period		3 years
Compensation expense		$ 306
Number of thresholds achieved | item													3
Number of employees to whom awards are granted who subsequently resigned | item		1