Condensed Consolidated Statement Of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Capital In Excess Of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Comprehensive Income/(Loss) [Member]	Total
BALANCE at Jun. 30, 2011	$ 9	$ 7,065	$ 82,640	$ (2,877)		$ 86,837
BALANCE, Shares at Jun. 30, 2011	8,612,590
Exercise/Issuance of:
Stock options		1,052				1,052
Stock options, shares	53,500
Nonvested stock awards
Nonvested stock awards, Shares	18,299
Net share settlement of stock options		(336)				(336)
Net share settlement of stock options, shares	(12,928)
Tax benefit from exercise/issuance of:
Stock options		62				62
Nonvested stock awards		25				25
Employee share-based compensation
Stock options		1,549				1,549
Nonvested stock awards		249				249
Net Income			6,560		6,560	6,560
Change in unrealized gain on investments (net of tax)				(27)	(27)	(27)
Change in interest rate swap unrealized loss (net of tax)				(171)	(171)	(171)
Comprehensive income					6,362
BALANCE at Dec. 31, 2011	$ 9	$ 9,666	$ 89,200	$ (3,075)		$ 95,800
BALANCE, Shares at Dec. 31, 2011	8,671,461