Income Taxes (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011
Deferred income tax assets:
Allowance for doubtful accounts	$ 29,000	$ 15,000
Inventory reserves	44,000	57,000
Inventory capitalization	289,000	450,000
Accrued expenses	127,000	94,000
Nonqualified option expense	1,824,000	1,648,000
Restricted stock expense	109,000	17,000
Capital loss carryforward	174,000	39,000
Charitable contributions	59,000	58,000
Research and development credits	136,000	71,000
Net operating loss	606,000	1,095,000
ASC 320 unrealized loss		202,000
Valuation allowance	(216,000)	(42,000)
Total income tax deferred assets	3,181,000	3,704,000
Deferred income tax liability:
Depreciation and amortization	1,957,000	1,684,000
Net deferred income tax assets	1,224,000	2,020,000
Deferred taxes for continuing operations
Current assets	1,287,177	1,618,495
Noncurrent assets	1,030,994	1,242,010
Noncurrent liabilities	(1,093,717)	(840,512)
Net deferred income tax assets	$ 1,224,000	$ 2,020,000