Share-Based Compensation - Additional Information (Details) - USD ($)		3 Months Ended
	Aug. 11, 2015	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Long-term obligations		$ 4,650,000	$ 4,223,000	$ 4,631,000
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost related to stock options and RSUs recognized		$ 442,000	$ 457,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted during the period (in shares)		151,350	134,100
Weighted average fair value of stock options granted (in dollars per share)		$ 6.25	$ 7.35
Stock options outstanding (in shares)		654,675
Total unrecognized compensation cost related to non-vested stock option awards		$ 2,184,000
Equity incentive plan, weighted average recognition period (in years)		3 years 1 month 10 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted during the period (in shares)		47,250	44,100
Weighted average fair value of restricted stock granted (in dollars per share)		$ 19.50	$ 18.46
RSUs outstanding (in shares)		176,660
Equity incentive plan, weighted average recognition period (in years)		2 years 8 months 11 days
Total unrecognized compensation cost related to non-vested RSUs		$ 1,940,000
Restricted Stock Units (RSUs) [Member] | Board of Directors Chairman [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted during the period (in shares)	10,000
Long-term obligations		117,000	$ 0
Dividend equivalent units paid		$ 2,000
2013 Equity Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of grant (in years)		10 years
Shares available for grant (in shares)		590,115
2013 Equity Compensation Plan [Member] | Service-Based Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate percentage		25.00%
Award service period (in years)		1 year