CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2013	Sep. 30, 2012
Current Assets
Cash and cash equivalents	$ 16,324,325	$ 42,977,501
Accounts receivable, net	5,907,328	3,978,512
Inventories	3,912,131	3,801,547
Deferred income taxes	1,994,613	1,588,162
Prepaid expenses and other current assets	4,405,173	2,031,644
Total current assets	32,543,570	54,377,366
Property and equipment, net	7,150,754	7,214,378
Non-current deferred income taxes	548,319	846,887
Other assets	129,800	158,600
Total Assets	40,372,443	62,597,231
Current Liabilities
Accounts payable	1,718,863	1,139,464
Accrued expenses	2,813,942	2,723,812
Deferred revenue	905,169	1,426,552
Total current liabilities	5,437,974	5,289,828
Non-current deferred income taxes	129,953	128,998
Other liabilities	113,016	98,002
Total Liabilities	5,680,943	5,516,828
Commitments and contingencies (See Note 6)
Shareholders' Equity
Preferred Stock, 10,000,000 shares authorized, $.001 par value, of which 200,000 shares are authorized as Class A Convertible stock. No shares issued and outstanding at March 31, 2013 and September 30, 2012
Common stock, $.001 par value: 75,000,000 shares authorized, 18,533,904 and 18,329,314 issued at March 31, 2013 and September 30, 2012, respectively	18,534	18,329
Additional paid-in capital	49,040,122	47,845,732
Retained earnings	6,022,435	29,605,236
Treasury stock, at cost, 1,756,807 and 1,756,632 shares at March 31, 2013 and September 30, 2012, respectively	(20,389,591)	(20,388,894)
Total Shareholders' Equity	34,691,500	57,080,403
Total Liabilities and Shareholders' Equity	$ 40,372,443	$ 62,597,231