Condensed Consolidated Unaudited Statements of Cash Flows - USD ($)	6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,534,947	$ 2,502,246
Adjustments to reconcile net income from operations to net cash flows from operating activities:
Depreciation	923,903	960,130
Amortization	132,499	182,500
Gain on sale of property and equipment	(21,624)	(34,482)
Equity-based compensation	765,554	660,203
Deferred income taxes	318,682	352,242
Provision (recovery) for losses on doubtful accounts	29,000	(67,000)
Provision for losses on inventory obsolescence	72,197	70,818
Other	1,308	(4,022)
Changes in assets and liabilities:
Accounts receivable	2,266,241	2,677,840
Inventories	2,625,416	4,128,553
Prepaid and other current assets	778,364	(1,954,372)
Other assets	(52,854)	20,467
Accounts payable	(771,163)	(1,005,681)
Accrued expenses and accrued wages, salaries and bonuses	(822,955)	(1,479,465)
Income taxes receivable	(117,476)	343,304
Net cash flows from operating activities	7,662,039	7,353,281
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(837,895)	(692,402)
Proceeds from sales of property and equipment	31,978	48,164
Net cash flows from investing activities	(805,917)	(644,238)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net payments on bank credit agreements	(5,434,648)	(3,292,820)
Principal payments on long-term debt	(180,267)	(174,650)
Repurchase of common stock	(1,038,060)	(2,547,683)
Dividends paid on convertible preferred stock		(97,820)
Dividends on common stock	(452,685)	(412,210)
Withholdings on the exercise of equity-based awards	(107,082)	(81,406)
Net cash flows from financing activities	(7,212,742)	(6,606,589)
Net change in cash	(356,620)	102,454
Cash, beginning of period	605,380	219,536
Cash, end of period	248,760	321,990
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	365,620	391,130
Cash paid during the period for income taxes	1,133,794	1,235,454
Supplemental disclosure of non-cash information:
Equipment acquisitions classified as accounts payable	29,219	17,500
Issuance of common stock in connection with the vesting and exercise of equity-based awards	$ 1,262,763	$ 1,174,981