CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
REVENUE:	$ 62,354,189		$ 63,120,607		$ 63,992,633
DIRECT EXPENSES:
Clinical salaries and benefits	35,402,831		35,647,158		36,261,034
Dental supplies	2,693,604		2,742,398		2,778,532
Laboratory fees	3,133,481		2,863,431		2,817,198
Occupancy	5,549,650		5,390,982		5,235,709
Advertising and marketing	2,018,264		2,666,930		1,341,002
Depreciation and amortization	2,838,582		2,505,957		2,432,427
General and administrative	4,934,926		5,705,741		5,547,121
Total Direct Expenses	56,571,338		57,522,597		56,413,023
Contribution from dental offices	5,782,851		5,598,010		7,579,610
CORPORATE EXPENSES:
General and administrative	4,207,681	[1]	3,544,074	[1]	4,366,767	[1]
Depreciation and amortization	161,693		122,217		79,061
OPERATING INCOME	1,413,477		1,931,719		3,133,782
OTHER INCOME (EXPENSE):
Change in fair value of contingent liabilities	0		830,000		0
Interest (expense), net	(104,147)		(80,920)		(155,170)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	1,309,330		2,680,799		2,978,612
Income tax expense	502,066		1,065,472		1,230,903
INCOME FROM CONTINUING OPERATIONS	807,264		1,615,327		1,747,709
DISCONTINUED OPERATIONS (Note 13):
Operating (loss) attributable to assets disposed of	0		0		(250,125)
(Loss) recognized on dispositions	0		0		(268,598)
Income tax benefit	0		0		214,233
LOSS ON DISCONTINUED OPERATIONS	0		0		(304,490)
NET INCOME	807,264		1,615,327		1,443,219
Net income per share of Common Stock - Basic
Continuing Operations (in dollars per share)	$ 0.44		$ 0.87		$ 0.94
Discontinued Operations (in dollars per share)	$ 0		$ 0		$ (0.16)
Net income per share of Common Stock - Basic (in dollars per share)	$ 0.44		$ 0.87		$ 0.78
Net income per share of Common Stock - Diluted
Continuing Operations (in dollars per share)	$ 0.44		$ 0.85		$ 0.91
Discontinued Operations (in dollars per share)	$ 0		$ 0		$ (0.16)
Net income per share of Common Stock - Diluted (in dollars per share)	$ 0.44		$ 0.85		$ 0.75
Cash dividends per share of Common Stock (in dollars per share)	$ 0.88		$ 0.86		$ 0.80
Weighted average number of shares of Common Stock and dilutive securities:
Basic (in shares)	1,839,149		1,853,307		1,857,084
Diluted (in shares)	1,848,714		1,909,760		1,915,148
Allocation of Recognized Period Costs [Line Items]
Stock based compensation expense	600,936		335,076		835,736
General and Administrative Expenses [Member]
Allocation of Recognized Period Costs [Line Items]
Stock based compensation expense	$ 600,936		$ 335,076		$ 585,816

[1] Corporate expenses - general and administrative includes $585,816 of stock-based compensation expense pursuant to ASC Topic 718 and $249,920 related to a long-term incentive program for the year ended December 31, 2010, $335,076 of stock-based compensation expense pursuant to ASC Topic 718 for the year ended December 31, 2011 and $600,936 of stock-based compensation expense pursuant to ASC Topic 718 for the year ended December 31, 2012.