Secondary Offering	9 Months Ended
Oct. 31, 2015
Equity [Abstract]
Secondary Offering	(4) Secondary Offering On September 30, 2015, 6,250,000 shares of common stock were sold in a secondary offering by certain existing shareholders, including affiliates of Seidler Equity Partners III, L.P. The Company received no proceeds from the secondary offering but incurred $705 in offering expenses. On October 26, 2015, the underwriters of the secondary offering partially exercised the option granted at the time of the secondary offering to purchase an additional 649,022 shares of common stock at the secondary offering price of $12.25 per share, less underwriting discounts and commissions, which consists solely of shares sold by affiliates of Seidler Equity Partners III, L.P. The Company received no proceeds from the partial exercise of the option but incurred $22 in offering expenses. Total expenses incurred related to the secondary offering and the exercise of the option was $727 and is recorded in selling, general, and administrative expenses in the accompanying statements of income.

(4) Secondary Offering

On September 30, 2015, 6,250,000 shares of common stock were sold in a secondary offering by certain existing shareholders, including affiliates of Seidler Equity Partners III, L.P. The Company received no proceeds from the secondary offering but incurred $705 in offering expenses. On October 26, 2015, the underwriters of the secondary offering partially exercised the option granted at the time of the secondary offering to purchase an additional 649,022 shares of common stock at the secondary offering price of $12.25 per share, less underwriting discounts and commissions, which consists solely of shares sold by affiliates of Seidler Equity Partners III, L.P. The Company received no proceeds from the partial exercise of the option but incurred $22 in offering expenses. Total expenses incurred related to the secondary offering and the exercise of the option was $727 and is recorded in selling, general, and administrative expenses in the accompanying statements of income.