Acquisitions (Details) (2013, USD $)	6 Months Ended
Jun. 30, 2013 item
Acquisitions
Number of acquisitions completed	3
Notes issued	$ 300,000
Settlement of management fees in connection with an acquisition	1,200,000
Preliminary aggregate purchase price allocation
Accounts receivable	984,000
Property and equipment	1,000
Other intangible assets	1,448,000
Goodwill	1,363,000
Other assets	14,000
Aggregate purchase price	3,810,000
Expected deductible goodwill
The amount of goodwill expected to be deductible for tax purposes	$ 1,400,000
Minimum
Preliminary aggregate purchase price allocation
Period over which all intangible assets will be amortized	5 years
Maximum
Preliminary aggregate purchase price allocation
Period over which all intangible assets will be amortized	20 years

The acquisition-date fair value of the notes issued in consideration for the business combination.

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The total value of management fees settled in connection with an acquisition.

+ References

No definition available.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

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The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

+ References

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- Definition

The amount of acquisition cost of a business combination allocated to receivables.

+ References

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-Name Statement of Financial Accounting Standard (FAS)

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

+ References

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

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

-Publisher FASB

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Amount of acquisition cost of a business combination allocated to assets, excluding financial assets and goodwill, lacking physical substance.

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Amount of acquisition cost of a business combination allocated to other assets not separately disclosed in the balance sheet.

+ References

No definition available.

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- Definition

The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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- Definition

The number of businesses acquired by the entity during the period.

+ References

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