CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income	$ 81	$ 434
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	782	860
Employee stock compensation expense	69	7
Provision for doubtful accounts	(4)	0
Gain on disposal of property and equipment	(1)	(6)
Changes in operating assets and liabilities:
Accounts receivable	(3)	(997)
Inventories	(87)	334
Income tax accruals	(61)	3
Prepaid expenses and other assets	72	41
Accounts payable	(214)	(962)
Accrued expenses	81	198
Customer advances	127	649
Net cash provided by operating activities	842	561
Investing activities:
Capital expenditures	(433)	(158)
Proceeds from sale of equipment	2	6
Net cash used by investing activities	(431)	(152)
Financing activities:
Payments of long-term debt	(111)	(327)
Payments of debt issuance costs	0	(45)
Payments on revolving line of credit	(5,085)	(6,823)
Borrowings on revolving line of credit	5,085	6,883
Proceeds from exercise of stock options	1	0
Payments on capital lease obligations	(63)	(64)
Net cash used by financing activities	(173)	(376)
Net increase in cash and cash equivalents	238	33
Cash and cash equivalents at beginning of period	434	386
Cash and cash equivalents at end of period	672	419
Supplemental disclosure of non-cash financing activities:
Cash paid for interest	$ 94	$ 139