Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (Loss)	$ 120,878,000	$ 16,538,000	$ 5,324,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Bad debt expense	360,000	269,000	170,000
Deferred financing cost amortization	345,000	316,000	385,000
Depreciation and amortization	5,664,000	2,509,000	2,526,000
Loss on sale of assets	810,000	67,000	218,000
Non-cash compensation expense	1,583,000	524,000	711,000
Deferred Income Tax Expense (Benefit)	(98,402,000)	0	0
Changes in operating assets and liabilities
Accounts receivable	(22,439,000)	(15,115,000)	(4,137,000)
Inventories	3,897,000	2,526,000	3,788,000
Costs and estimated earnings in excess of billings	(3,236,000)	(3,727,000)	(256,000)
Prepaid expenses and other current assets	(1,716,000)	(1,902,000)	2,295,000
Other non-current assets	(1,500,000)	120,000	592,000
Accounts payable and accrued expenses	19,676,000	6,654,000	39,000
Billings in excess of costs and estimated earnings	(936,000)	3,313,000	1,176,000
Other non-current liabilities	(16,000)	(586,000)	(233,000)
Net cash provided by operating activities	24,968,000	11,506,000	12,598,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(3,417,000)	(2,779,000)	(1,982,000)
Proceeds from Sale of Property, Plant, and Equipment	2,225,000	0	0
Cash paid in conjunction with business combination (net of cash)	(59,544,000)	(3,113,000)	0
Net cash used in investing activities	(60,736,000)	(5,892,000)	(1,982,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of debt	20,289,000	26,000	0
Repayments of debt	(290,000)	0	(3,502,000)
Purchase of treasury stock	590,000	3,622,000	179,000
Changes In Restricted Cash	260,000	0	0
Issuance of shares	220,000	0	19,650,000
Net cash provided by (used in) financing activities	19,369,000	(3,596,000)	15,969,000
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(16,399,000)	2,018,000	26,585,000
CASH AND CASH EQUIVALENTS, beginning of period	49,360,000	47,342,000	20,757,000
CASH AND CASH EQUIVALENTS, end of period	32,961,000	49,360,000	47,342,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for interest	1,009,000	792,000	1,149,000
Cash paid for income taxes	$ 1,415,000	$ 1,532,000	$ 732,000