Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Revenues	$ 159,981	$ 133,752	$ 310,747	$ 270,088
Cost of services	132,169	112,044	255,302	225,676
Gross profit	27,812	21,708	55,445	44,412
Selling, general and administrative expenses	24,267	19,409	46,778	38,107
Contingent Consideration Expense	266	0	266	0
Loss on sale of assets	775	1	776	7
Income from operations	2,504	2,298	7,625	6,298
Interest and other (income) expense:
Interest expense	303	311	596	599
Other (income) expense, net	(3)	(171)	(32)	(199)
Income from operations before income taxes	2,204	2,158	7,061	5,898
Provision (benefit) for income taxes	10	304	(932)	569
Net income from continuing operations	2,194	1,854	7,993	5,329
Net loss from discontinued operations	0	(44)	0	(226)
Net income	2,194	1,810	7,993	5,103
Unrealized loss on interest hedge, net of tax	0	0
Comprehensive income	$ 2,194	$ 1,810	$ 7,993	$ 5,103
Earnings Per Share, Basic [Abstract]
From continuing operations	$ 0.1	$ 0.08	$ 0.37	$ 0.25
From discontinued operations	0	0	0	(0.01)
Basic	0.1	0.08	0.37	0.24
Diluted earnings (loss) per share:
From continuing operations	0.1	0.08	0.37	0.25
From discontinued operations	0	0	0	(0.01)
Diluted	$ 0.1	$ 0.08	$ 0.37	$ 0.24
Shares used in the computation of earnings (loss) per share
Basic	21,273,814	21,571,034	21,271,655	21,653,711
Diluted	21,436,012	21,618,327	21,389,258	21,697,568