Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Income (loss) from continuing operations	$ 673	$ 5,556	$ (653)
Loss from discontinued operations	(608)	(266)	(274)
Loss on disposal of discontinued operations	1,467	0	0
Net income (loss)	(1,402)	5,290	(927)
Depreciation and amortization -
Continuing operations	12,850	10,230	9,396
Discontinued operations	59	32	0
Provision (benefit) for deferred income taxes	264	(1,037)	(643)
Net (gain) loss on property, plant and equipment disposals	11	195	(186)
Impairment of assets -
Continuing operations	1,133	0	0
Discontinued operations	2,363	0	0
Gain on purchase of businesses	(11,110)	0	0
Stock-based compensation expense	1,195	847	937
Excess tax benefits from stock-based compensation	(379)	(151)	0
Write-off of deferred financing costs	0	94	0
Changes in operating assets and liabilities:
Receivables	(1,287)	(11,479)	(3,296)
Inventories	743	(19,283)	(8,115)
Other current assets	679	(878)	(2,506)
Accounts payable and accrued expenses	(925)	11,642	1,455
Other operating assets and liabilities	(733)	(1,423)	(827)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	3,461	(5,921)	(4,712)
CASH FLOWS FROM INVESTING ACTIVITIES
Net proceeds from sales of property, plant and equipment	473	48	187
Deposits on property, plant and equipment	(1,184)	0	0
Purchase of property, plant and equipment	(9,492)	(11,438)	(3,386)
Proceeds from sale of equity investment	870	0	0
Proceeds from sale of assets held for sale	5,501	0	0
Net cash paid in business acquisitions	(17,739)	(2,170)	(1,197)
NET CASH USED IN INVESTING ACTIVITIES	(21,571)	(13,560)	(4,396)
CASH FLOWS FROM FINANCING ACTIVITIES
Net (payments) borrowings on revolving credit facility	(2,378)	25,152	7,316
Payments on mortgage note payable	0	(10,141)	(737)
Payments on building notes payable	(35)	0	0
Payments on notes payable related to acquisitions	(1,761)	(852)	(161)
Borrowings on equipment financing	3,760	4,312	5,003
Payments on equipment financing	(1,917)	(1,212)	(1,293)
Payments on capital leases	(1,539)	(688)	(204)
Borrowings on notes payable	1,433	2,429	795
Payments on notes payable	(1,100)	(851)	(746)
Change in outstanding checks in excess of cash	(2,683)	1,350	(205)
Proceeds from equity offering, net of issuance costs	24,559	0	0
Proceeds from exercise of stock options	192	190	0
Repurchases of Common Stock	(497)	(207)	(199)
Excess tax benefits from stock-based compensation	379	151	0
Payments for debt issuance costs	(164)	(388)	(268)
NET CASH PROVIDED BY FINANCING ACTIVITIES	18,249	19,245	9,301
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	139	(236)	193
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	255	491	298
CASH AND CASH EQUIVALENTS AT END OF PERIOD	394	255	491
SUPPLEMENTAL CASH FLOW INFORMATION:
Equipment purchased under capital leases	10,078	1,865	666
Equipment purchased under notes payable	4,925	0	0
Building purchased under notes payable	8,330	0	0
Assets acquired in acquisitions, net of cash acquired	36,649	8,062	9,184
Liabilities assumed in acquisitions	(6,397)	(836)	(42)
Note payable related to acquisition	0	(3,749)	(5,500)
Accrued consideration for working capital adjustment in acquisitions	(216)	(1,307)	(2,445)
Accrued consideration for holdbacks in acquisition	(887)	0	0
Deposits on property, plant & equipment financed	(965)	0	0
Shortfall of tax benefits from stock-based compensation	$ (607)	$ 0	$ 0