CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Net sales	$ 144,809	$ 143,129	$ 280,793	$ 272,658
Cost of goods sold	91,667	88,755	179,530	170,279
Gross profit	53,142	54,374	101,263	102,379
Selling expenses	39,599	38,322	78,049	74,936
General and administrative expenses	9,860	10,329	16,869	18,829
Net losses (gains) from sales of assets	178	73	239	(50)
Operating expenses	49,637	48,724	95,157	93,715
Income from operations	3,505	5,650	6,106	8,664
Other income (expense):
Dividend income	291	258	585	526
Interest income	90	110	179	218
Interest expense	(208)	(393)	(415)	(765)
Other, net	(530)	(514)	(594)	(1,420)
Total other expense	(357)	(539)	(245)	(1,441)
Income before taxes	3,148	5,111	5,861	7,223
Income tax expense	252	402	450	709
Net income	$ 2,896	$ 4,709	$ 5,411	$ 6,514
Net income per common share—basic	$ 0.18	$ 0.30	$ 0.34	$ 0.41
Net income per common share—diluted	$ 0.18	$ 0.29	$ 0.33	$ 0.41
Weighted average common shares outstanding—basic	16,030,167	15,847,958	16,016,984	15,825,100
Weighted average common shares outstanding—diluted	16,184,138	15,964,682	16,158,725	15,904,456