Long-term Debt and Line of Credit (Details) (USD $)	3 Months Ended	9 Months Ended			9 Months Ended			9 Months Ended				9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Mar. 31, 2012	Sep. 30, 2012 LIBOR [Member]	Sep. 30, 2012 Secured Debt [Member]	Sep. 30, 2012 Revolving Line of Credit [Member]	Sep. 30, 2012 Letter of Credit [Member] Secured Debt [Member]	Sep. 30, 2012 Prime Rate Based Loans [Member] Revolving Line of Credit [Member] Secured Debt [Member]	Sep. 30, 2012 Prime Rate Based Loans [Member] Swingline Loan [Member] Secured Debt [Member]	Sep. 30, 2012 Eurodollar Rate Loan [Member] Revolving Line of Credit [Member] Secured Debt [Member]	Sep. 30, 2012 Acquisition of Tampa Property From Lazarra [Member] Secured Debt [Member]	Sep. 30, 2012 Eligible Accounts Receivable [Member]	Sep. 30, 2012 Adjusted Cash Balance [Member]	May 31, 2012 Original Credit Agreement [Member]	Sep. 30, 2012 Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Amount drawn on revolving line of credit to purchase property											$ 13,000,000
LIne of credit facility, term loan, amount drawn					10,900,000
Line of credit facility, revolving credit converted to term loan, amount outstanding					10,500,000
Line of credit facility, remaining borrowing capacity						2,100,000
Restricted cash equivalents set aside in certificates of deposits			13,900,000
Line of credit racility, maximum borrowing capacity														75,000,000	35,000,000
Line of credit facility, current borrowing capacity							20,000,000
Line of credit facility, additional borrowing capacity					25,000,000
Line of credit facility, integral multiple of borrowings								500,000	100,000	1,000,000
Line of credit, current borrowing capacity base components												80.00%	90.00%
Debt instrument, periodic payment, principal					389,000
Line of credit facility, minimum net worth					180,000,000
Line of credit facility, covenant terms, minimum net worth, incremental amount to base amount, % of current quarter consolidated net income					50.00%
Line of credit facility, covenant terms, minimum net worth, incremental amount to base amount, % of issuances of equity interests					75.00%
Line of credit facility, unused capacity commitment fee percentage					0.25%
Debt instrument, description of variable rate basis		LIBOR
Line of credit facility, interest rate at period end				2.75%
Line of credit facility, interest rate during period	2.75%	2.28%
Letters of credit outstanding, amount							$ 952,000