Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,903,085	$ 3,416,742
Adjustments to reconcile net income from operations to net cash flows from operating activities:
Depreciation	1,035,231	845,120
Amortization	192,190	159,596
Gain on sale of property and equipment	(22,216)	(8,722)
Equity-based compensation	674,180	1,514,567
Net excess tax benefit on equity-based awards		(125,904)
Deferred income taxes	453,989	456,871
Provision (recoveries) for losses on doubtful accounts	164,757	(843,000)
Provision for losses on inventory obsolescence	7,827	26,538
Other	(4,023)	(4,022)
Changes in assets and liabilities:
Accounts receivable	813,322	3,945,809
Inventories	3,645,697	1,039,737
Prepaid and other current assets	(1,308,654)	(1,141,257)
Other assets	(48,424)	(108,564)
Accounts payable	(2,062,052)	(319,457)
Accrued expenses and accrued wages, salaries and bonuses	(1,509,628)	(1,625,822)
Income tax payable	(1,268,395)	(1,708,879)
Net cash flows from operating activities	3,666,886	5,519,353
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(707,724)	(957,254)
Proceeds from sales of property and equipment	40,820	27,475
Net cash flows from investing activities	(666,904)	(929,779)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net payments on bank credit agreements	(1,464,646)	(3,836,212)
Principal payments on long-term debt	(732,440)	(471,968)
Repurchase of common stock	(918,000)
Net excess tax benefit on equity-based awards		125,904
Dividends paid on convertible preferred stock	(134,547)	(148,106)
Dividends on common stock	(238,628)	(216,945)
Proceeds from exercise of stock options	1,180
Withholdings on the exercise of equity-based awards	(51,452)
Net cash flows from financing activities	(3,538,533)	(4,547,327)
Net change in cash	(538,551)	42,247
Cash, beginning of period	1,389,665	356,735
Cash, end of period	851,114	398,982
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	770,110	668,389
Cash paid during the period for income taxes	2,787,407	3,630,007
Supplemental disclosure of non-cash information:
Equipment acquisitions classified as accounts payable	5,185	8,953
Issuance of common stock in connection with the vesting and exercise of equity-based awards	$ 950,562