Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Consolidated Statements Of Income [Abstract]
Net Sales	$ 20,266	$ 14,134	$ 48,966	$ 43,228
Cost of Sales	10,489	7,671	27,895	24,927
Gross Profit	9,777	6,463	21,071	18,301
Operating Expenses
Selling, general and administrative	3,609	3,486	10,815	10,558
Engineering, research and development	1,852	2,134	5,463	6,224
Total operating expenses	5,461	5,620	16,278	16,782
Operating Income	4,316	843	4,793	1,519
Other Income and (Expenses)
Interest income, net	57	59	188	160
Foreign currency gain (loss)	(243)	43	(528)	254
Other			157
Total other income (expense)	(186)	102	(183)	414
Income from Continuing Operations Before Income Taxes	4,130	945	4,610	1,933
Income Tax Expense	(1,365)	(339)	(1,314)	(652)
Income from Continuing Operations	2,765	606	3,296	1,281
Discontinued Operations
Litigation Settlement from Forest Products Business Unit net of $493 of taxes (Note 13)			(1,009)
Net Income	$ 2,765	$ 606	$ 2,287	$ 1,281
Basic Earnings (Loss) Per Common Share
Continuing operations	$ 0.33	$ 0.07	$ 0.39	$ 0.14
Discontinued operations			$ (0.12)
Net Income	$ 0.33	$ 0.07	$ 0.27	$ 0.14
Diluted Earnings (Loss) Per Common Share
Continuing operations	$ 0.33	$ 0.07	$ 0.38	$ 0.14
Discontinued operations			$ (0.12)
Net Income	$ 0.33	$ 0.07	$ 0.26	$ 0.14
Weighted Average Common Shares Outstanding
Basic	8,393	8,888	8,444	8,953
Dilutive effect of stock options	105	177	118	165
Diluted	8,498	9,065	8,562	9,118