Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Revenues	$ 136,192	$ 121,552	$ 376,537	$ 370,810
Cost of services	113,526	105,899	315,728	321,182
Gross profit	22,666	15,653	60,809	49,628
Selling, general and administrative expenses	19,110	16,576	55,855	48,104
Gain (loss) on sale of assets	(10)	(16)	(73)	(56)
Income (loss) from operations	3,566	(907)	5,027	1,580
Interest and other (income) expense:
Interest expense	348	372	1,267	1,425
Other (income) expense, net	1	(649)	(211)	925
Income (loss) from operations before income taxes	3,217	(630)	3,971	(770)
Provision (benefit) for income taxes	422	95	465	264
Net income (loss) from continuing operations	2,795	(725)	3,506	(1,034)
Discontinued operations
Income (loss) from discontinued operations	(121)	(421)	(321)	(711)
Provision (benefit) for income taxes	1	(8)	(8)	(14)
Net loss from discontinued operations	(122)	(413)	(313)	(697)
Net income (loss)	2,673	(1,138)	3,193	(1,731)
Unrealized gain on interest hedge, net of tax	(14)	19	(21)	19
Comprehensive income (loss)	$ 2,659	$ (1,119)	$ 3,172	$ (1,712)
Basic earnings (loss) per share:
From continuing operations	$ 0.15	$ (0.05)	$ 0.19	$ (0.07)
From discontinued operations	$ (0.01)	$ (0.02)	$ (0.02)	$ (0.04)
Basic earnings (loss) per share	$ 0.14	$ (0.07)	$ 0.17	$ (0.11)
Diluted earnings (loss) per share:
From continuing operations	$ 0.15	$ (0.05)	$ 0.19	$ (0.07)
From discontinued operations	$ (0.01)	$ (0.02)	$ (0.02)	$ (0.04)
Diluted earnings (loss) per share	$ 0.14	$ (0.07)	$ 0.17	$ (0.11)
Shares used in the computation of earnings (loss) per share
Basic	18,464,933	15,445,606	18,450,935	15,388,997
Diluted	18,521,628	15,445,606	18,509,984	15,388,997