Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (loss)	$ (27,226)	$ 4,475
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Bad debt expense	96	(15)
Deferred financing cost amortization	142	172
Depreciation and amortization	4,269	4,378
Loss (gain) on sale of assets	(34)	(13)
Deferred income taxes	33,584	2,675
Non-cash compensation	(111)	926
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Accounts receivable	14,945	(435)
Inventories	(665)	(3,252)
Costs and estimated earnings in excess of billings	(1,921)	(3,491)
Prepaid expenses and other current assets	97	(5,642)
Other non-current assets	(52)	594
Accounts payable and accrued expenses	(10,081)	213
Billings in excess of costs and estimated earnings	(2,098)	1,483
Other non-current liabilities	214	587
Net cash provided by operating activities	11,159	2,655
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(2,327)	(2,891)
Proceeds from sale of property and equipment	94	23
Consideration for acquisitions	(175)	(11,663)
Net cash used in investing activities	(2,408)	(14,531)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of debt	68	5,050
Repayments of debt	(109)	(5,053)
Contingent consideration payment		(448)
Distribution to noncontrolling interest	(69)	(122)
Options exercised	11	87
Purchase of treasury stock	(1,229)	(14)
Net cash used in financing activities	(1,328)	(500)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	7,423	(12,376)
CASH, CASH EQUIVALENTS and RESTRICTED CASH, BEGINNING BALANCE	28,290	33,221
CASH, CASH EQUIVALENTS and RESTRICTED CASH, ENDING BALANCE	35,713	20,845
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	788	660
Cash paid for income taxes	$ 1,456	$ 1,685