Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 Segment	Mar. 31, 2014	Dec. 31, 2014
Segments [Abstract]
Number of operating segments	2us-gaap_NumberOfOperatingSegments
Number of reportable segments	2us-gaap_NumberOfReportableSegments
Segment Reporting Information [Line Items]
Segment net sales	$ 29,213us-gaap_SalesRevenueNet	$ 23,528us-gaap_SalesRevenueNet
Segment income (loss) from operations	320us-gaap_OperatingIncomeLoss	(2,358)us-gaap_OperatingIncomeLoss
Depreciation and amortization	(2,585)	(2,744)
Loss on disposal and impairment of property and equipment	(64)	(134)
Depreciation and amortization expense	2,585	2,744
Capital expenditures	2,180	2,703
Identifiable assets	66,142us-gaap_Assets		65,748us-gaap_Assets
Reconciling Items [Member]
Segment Reporting Information [Line Items]
Non-recurring costs	(22)	(1,825)
Depreciation and amortization	(2,585)	(2,744)
Loss on disposal and impairment of property and equipment	(64)	(134)
Depreciation and amortization expense	2,585	2,744
Operating Segments [Member] \| Water [Member]
Segment Reporting Information [Line Items]
Segment net sales	20,657	15,891
Segment income (loss) from operations	6,428	4,938
Depreciation and amortization	(2,359)	(2,506)
Depreciation and amortization expense	2,359	2,506
Capital expenditures	2,142	2,623
Identifiable assets	52,532		52,758
Operating Segments [Member] \| Dispensers [Member]
Segment Reporting Information [Line Items]
Segment net sales	8,556	7,637
Segment income (loss) from operations	331	328
Depreciation and amortization	(95)	(76)
Depreciation and amortization expense	95	76
Capital expenditures	0	63
Identifiable assets	11,823		11,075
Corporate [Member]
Segment Reporting Information [Line Items]
Segment income (loss) from operations	(3,768)	(2,921)
Depreciation and amortization	(131)	(162)
Depreciation and amortization expense	131	162
Capital expenditures	38	17
Identifiable assets	$ 1,787		$ 1,915

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.18)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 18

-Article 5

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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.

+ References

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)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Balance Type:	debit
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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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