Segments (Reconciliation of adjusted EBITDA to consolidated financial statements) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
Income (loss) from continuing operations before income taxes	$ 16,427	$ (2,162)	$ (22,666)
Interest expense	2,684us-gaap_InterestExpense	3,793us-gaap_InterestExpense	4,037us-gaap_InterestExpense
Depreciation and amortization	13,343	12,060	11,718
Impairment assets held for sale	48	432	361
Public offering transaction-related costs	508stck_PublicOfferingExpense	10,008stck_PublicOfferingExpense	0stck_PublicOfferingExpense
Restructuring expense	73us-gaap_RestructuringCharges	141us-gaap_RestructuringCharges	2,853us-gaap_RestructuringCharges
Management fees	182	1,307	1,379
Non-cash compensation expense	2,669us-gaap_ShareBasedCompensation	1,049us-gaap_ShareBasedCompensation	1,305us-gaap_ShareBasedCompensation
Acquisition costs	176	257	284
Severance and other expense related to store closures and business optimization	779	1,113	2,375
Reduction of tax indemnification asset	0	0	347
Other items	0stck_AdjustmentToEarningsOther	(195)stck_AdjustmentToEarningsOther	0stck_AdjustmentToEarningsOther
Other reconciling items [Member] \| Other reconciling items [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Depreciation and amortization	981	802	1,699
Adjusted EBITDA	32,637	27,104	23,797
Operating segments [Member] \| Coleman Floor [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Depreciation and amortization	117	134	118
Adjusted EBITDA	453	(2,127)	(1,798)
Operating segments [Member] \| Geographic divisions [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Depreciation and amortization	12,245	11,124	9,901
Adjusted EBITDA	$ (69,979)	$ (52,780)	$ (23,992)

Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization and other items

No definition available.

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- Definition

Other adjustment to earnings.

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No definition available.

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- Definition

Increase (Decrease) of Tax Indemnification Asset

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount of expenses associated with the offering of stock to the public.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Severance and Other Expense Related to Store Closures and Business Optimization

+ References

No definition available.

+ Details

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Namespace Prefix:	stck_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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- Definition

The loss (gain) resulting from the write-down of the carrying value of assets classified as a disposal group, but one which is not further classified as a discontinued operation, to fair value less cost to sell. A (gain) results from a subsequent increase in fair value less cost to sell, but not in excess of the cumulative loss previously recognized. For example, the write-down of a disposal group subject to a plan of sale, which was not sold in the current period, to its held-for-sale value. The loss (gain) is included in income from continuing operations before income taxes in the income statement.

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- Definition

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.9)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 9

-Article 9

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

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-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 5.P.3)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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