Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of the required periodic payments applied to principal.

+ References

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

Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

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- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

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- Definition

The effective interest rate during the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Business acquisition purchase price allocation notes payable number of equal installment.

+ References

No definition available.

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Amount of cash and noncash consideration that could pay with respect to acquisition.

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No definition available.

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Amount of cash and noncash consideration that could pay with respect to acquisition.

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No definition available.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

+ References

No definition available.

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- Definition

Refers to the number of clinic-practice acquired.

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No definition available.

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Notes Payable (Details)			12 Months Ended
Notes Payable (Details)	Jan. 11, 2016 USD ($)	Dec. 05, 2013 USD ($)	Dec. 31, 2015 USD ($) Installment	Dec. 31, 2014 USD ($) Clinic Installment	Dec. 31, 2013 USD ($) Installment
Debt Instrument [Line Items]
Number of annual installments \| Installment			2
Aggregate principal payment due in 2016			$ 775,000
Aggregate principal payment due in 2017			559,000
Aggregate principal payment due in 2018			45,930,000
Aggregate principal payment due in 2019			1,846,000
Number of clinic-practice acquisition \| Clinic				13
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Aggregate amount of notes payable				$ 500,000	$ 1.3
Aggregate principal installments				$ 233,000	$ 650,000
Average effective interest rate				3.25%	3.25%
Number of annual installments \| Installment				2	2
Notes Payable [Member]
Debt Instrument [Line Items]
Aggregate amount of notes payable			4,900,000
Aggregate principal payment due in 2016			575,000
Aggregate principal payment due in 2017			525,000
Aggregate principal payment due in 2018			1,900,000
Aggregate principal payment due in 2019			$ 1,900,000
Minimum [Member]
Debt Instrument [Line Items]
Spread on Libor variable rate			1.50%
Spread on base variable rate			0.10%
Percentage of unused commitment fee			0.10%
Minimum [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Average effective interest rate			3.25%
Maximum [Member]
Debt Instrument [Line Items]
Spread on Libor variable rate			2.50%
Spread on base variable rate			1.00%
Percentage of unused commitment fee			0.25%
Maximum [Member] \| Notes Payable [Member]
Debt Instrument [Line Items]
Average effective interest rate			3.50%
Credit Agreement [Member]
Debt Instrument [Line Items]
Cash and noncash consideration with respect to acquisition	$ 25,000,000
Cash and noncash consideration with respect to acquisition after amendment	50,000,000
Cash dividends	7,500,000
Cash dividends after amendment	$ 10,000,000
Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility commitment		$ 125,000,000
Revolving credit facility maturity date		Nov. 30, 2018
Remaining revolving credit outstanding			$ 81,000,000
Average effective interest rate			2.50%