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Schedule of Borrowings and Capital Lease Obligations (Detail) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Short-term Debt $ 630,478 $ 5,664,827
Long term debt 28,657,826 17,950,911
Less: Current portion of long term debt (3,146,727) (7,919,179)
Long-term debt 25,511,099 10,031,732
Discontinued Operations
   
Debt Instrument [Line Items]    
Long term debt   78,112
Less: Current portion of long term debt   (68,143)
Long-term debt   9,969
Discontinued Operations | Arvest bank
   
Debt Instrument [Line Items]    
Short-term Debt   3,994,932
Discontinued Operations | Sleep center notes payable
   
Debt Instrument [Line Items]    
Long term debt   28,723
Discontinued Operations | Equipment capital leases
   
Debt Instrument [Line Items]    
Long term debt   $ 49,389