CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Operating activities:
Net income (loss)	$ 1,023,091	$ (1,722,443)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	1,234,412	1,127,617
Amortization	761,100	705,064
Stock based compensation	775,588	1,179,922
Deferred income tax expense (benefit)	22,248	(163,172)
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable, net	(291,103)	(371,714)
Inventories, net	796,602	(575,568)
Other current assets	(185,323)	(1,296,117)
Accounts payable	(324,936)	854,855
Income tax payable	(210,901)	199,665
Other current liabilities	(136,596)	(387,410)
Net cash provided by (used in) operating activities	3,464,182	(449,301)
Investing activities:
Purchase of property, plant and equipment	(1,148,791)	(1,349,157)
Business acquisition		(15,057,816)
Purchase of intangibles	(268,041)	320,527
Purchases of marketable securities	(18,994,217)	(28,761,550)
Sales and maturities of marketable securities	38,657,174	34,672,191
Net cash provided by (used in) investing activities	18,246,125	(10,175,805)
Financing activities:
Proceeds from long-term debt	778,623	17,864,367
Payments on long-term debt	(18,640,808)	(2,643,415)
Repurchase of common stock	(1,088,619)	(1,184,074)
Proceeds from issuance of common stock	180,291	542,898
Net cash provided by (used in) financing activities	(18,770,513)	14,579,776
Effect of exchange rate on cash and cash equivalents	(73,461)	153,487
Increase in cash and cash equivalents	2,866,333	4,108,157
Cash and cash equivalents at beginning of period	8,722,935	4,545,907
Cash and cash equivalents at end of period	11,589,268	8,654,064
Supplemental Cash Flow Information
Interest paid	164,178	73,907
Income taxes paid	$ 863,865	$ 60,000