Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss)	$ 13,594	$ 120,878	$ 16,538
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Bad debt expense	296	360	269
Deferred financing cost amortization	294	345	316
Depreciation and amortization	9,634	5,664	2,509
Loss on sale of assets	(69)	810	67
Non-cash compensation expense	1,707	1,583	524
Deferred Income Tax Expense (Benefit)	6,899	(98,402)	0
Changes in operating assets and liabilities
Accounts receivable	(7,621)	(22,439)	(15,115)
Inventories	(1,856)	3,897	2,526
Costs and estimated earnings in excess of billings	2,571	(3,236)	(3,727)
Prepaid expenses and other current assets	(6,798)	(1,716)	(1,902)
Other non-current assets	(510)	(1,500)	120
Accounts payable and accrued expenses	(2,829)	19,676	6,654
Billings in excess of costs and estimated earnings	5,898	(936)	3,313
Other non-current liabilities	1,139	(16)	(586)
Net cash provided by operating activities	22,349	24,968	11,506
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(4,589)	(3,417)	(2,779)
Proceeds from Sale of Property, Plant, and Equipment	270	2,225	0
Cash paid in conjunction with business combination (net of cash)	(20,213)	(59,544)	(3,113)
Net cash used in investing activities	(24,532)	(60,736)	(5,892)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of debt	5,434	20,289	26
Repayments of debt	(5,432)	(290)	0
Purchase of treasury stock	(2,367)	(590)	(3,622)
Contingent Consideration Payment	(448)
Distribution to Noncontrolling Interest	(153)
Issuance of shares	218	220	0
Net cash provided by (used in) financing activities	(2,748)	19,629	(3,596)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(4,931)	(16,139)	2,018
CASH AND CASH EQUIVALENTS, beginning of period	33,221	49,360	47,342
CASH, CASH EQUIVALENTS, and RESTRICTED CASH end of period	28,290	33,221	49,360
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	1,521	1,009	792
Cash paid for income taxes	$ 2,429	$ 1,415	$ 1,532