Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Sales	$ 87,390	$ 79,657
Cost of sales	57,436	52,192
Gross profit	29,954	27,465
Operating expenses:
General and administrative	6,934	6,226
Advertising	6,707	6,292
Depreciation	556	531
Total operating expenses	14,197	13,049
Income from operations	15,757	14,416
Other income:
Interest income, net	379	83
Other, net	317	241
Total other income	696	324
Income before provision for income taxes	16,453	14,740
Provision for income taxes	3,871	5,464
Net income	12,582	9,276
Comprehensive income	$ 12,582	$ 9,276
Net income per common share:
Basic (in dollars per share)	$ 0.62	$ 0.46
Diluted (in dollars per share)	$ 0.62	$ 0.45
Basic (in shares)	20,408	20,293
Diluted (in shares)	20,449	20,448
Cash dividends declared per common share (in dollars per share)	$ 0.25	$ 0.20