Condensed Statements Of Cash Flows Unaudited (USD $)	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net income	$ 1,982,326	$ 545,211
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	151,910	121,225
Deferred taxes	1,028,210	332,760
(Gain) loss on disposal of assets	(86)	7,297
Stock based compensation	188,160	186,049
Changes in operating assets and liabilities:
Accounts receivable, net	5,553,199	(181,214)
Inventories, net	499,673	(654,295)
Other assets	(189,241)	(43,717)
Accounts payable and accrued expenses	(2,414,434)	(257,289)
Net cash provided by operating activities	6,799,717	56,027
Cash flows from investing activities
Purchases of property, plant and equipment and intangible assets	(92,298)	(154,398)
Purchases of investments	(2,606,000)	(1,655,000)
Proceeds from maturities of investments	3,782,000	2,145,000
Net cash provided by investing activities	1,083,702	335,602
Cash flows from financing activities
Proceeds from issuance of common stock under employee stock purchase plan	90,417	68,760
Proceeds from issuance of common stock upon exercise of stock options	25,327	7,625
Tax withholding related to exercise of stock options	(72,816)	(9,988)
Net cash provided by financing activities	42,928	66,397
Increase in cash and cash equivalents	7,926,347	458,026
Cash and cash equivalents, beginning of period	9,807,957	5,678,143
Cash and cash equivalents, end of period	17,734,304	6,136,169
Supplemental disclosures for cash flow information
Cash paid during the year for income taxes	79,276
Non-cash financing activities
Cashless exercise of stock options	$ 22,427	$ 16,588