PROPERTY AND EQUIPMENT (Details) (USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property and Equipment [Line Items]
Property and equipment	$ 31,305,380	$ 27,163,082
Less - accumulated depreciation	(21,178,981)	(19,268,749)
Property and equipment, net	10,126,399	7,894,333
Depreciation expense	2,748,517	2,097,837	1,729,669
Dental Equipment [Member]
Property and Equipment [Line Items]
Property and equipment	9,759,160	8,983,394
Furniture and Fixtures [Member]
Property and Equipment [Line Items]
Property and equipment	1,571,135	1,479,897
Leasehold Improvements [Member]
Property and Equipment [Line Items]
Property and equipment	11,969,958	10,147,928
Computer Equipment, Software and Related Items [Member]
Property and Equipment [Line Items]
Property and equipment	6,106,685	4,854,173
Instruments [Member]
Property and Equipment [Line Items]
Property and equipment	$ 1,898,442	$ 1,697,690

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

Gross amount 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.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, 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.

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