Condensed Consolidated Statements of Cash Flows (USD $)	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Cash flows from operating activities:
Net loss	$ (11,459,946)	$ (1,249,758)	$ 2,016,641
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Deferred income taxes	2,155,944	(379,820)	904,963
Depreciation and amortization	666,312	720,295	728,138
Amortization of deferred compensation	4,768	4,768	23,848
Stock compensation expense	293,906	290,584	322,580
Change in assets and liabilities:
Accounts receivable, net	2,232,012	(232,723)	4,230,079
Inventories	(326,276)	840,512	281,925
Recoverable income taxes	55,755	(144,128)	0
Prepaid expenses and other current assets	(38,051)	11,828	143,853
Other assets	(49,969)	34,493	(16,594)
Accounts payable	826,109	(550,844)	(147,305)
Accrued compensation and employee benefits	16,358	(529,544)	95,497
Accrued expenses	(108,205)	(94,093)	(203,143)
Unearned revenue	(283,008)	(25,574)	(128,598)
Income taxes payable	0	(31,968)	(115,660)
Other liabilities	38,747	(221,582)	232,935
Net cash provided by (used in)	(5,975,544)	(1,557,554)	8,369,159
Cash flows from investing activities:
Increase (Decrease) in Trading Securities	3,263,552	(5,067,259)	31,303
Payments to Acquire Property, Plant, and Equipment	(391,583)	(334,804)	(573,384)
Net Cash Provided by (Used in) Investing Activities	2,871,969	(5,402,063)	(542,081)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Payments for Repurchase of Common Stock	(129,164)	(858,359)	(1,262,169)
Proceeds from Stock Options Exercised	57,480	5,307	397,230
Net Cash Provided by (Used in) Financing Activities	(71,684)	(853,052)	(864,939)
Effect of Exchange Rate on Cash and Cash Equivalents	13,448	(47,555)	127,086
Cash and Cash Equivalents, Period Increase (Decrease)	(3,161,811)	(7,860,224)	7,089,225
Cash at beginning of year	8,789,967	16,650,191	9,560,966
Cash at end of period	5,628,156	8,789,967	16,650,191
Income taxes	88,879	172,282	472,797
Interest	$ 0	$ 0	$ 2,179

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).