Credit Facilities and Long-Term Debt - Summary of Outstanding Long-Term Debt Balances (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Summary of outstanding long-term debt balances
Total notes payable	$ 43,573,552	$ 43,700,742
Less: current portion	3,500,000	3,502,190
Notes payable, long-term portion	40,073,552	40,198,552
LIBOR Plus 1.75 to 2.25%, Bank of America Amortizing Term Loan, Due April 1, 2017 [Member]
Summary of outstanding long-term debt balances
Total notes payable	9,250,000	9,375,000
6.16%, Allstate/ CUNA Senior Unsecured Note, Due June 29, 2017 [Member]
Summary of outstanding long-term debt balances
Total notes payable	13,000,000	13,000,000
5.38%, Sun Life Fixed Rate Note, Due June 1, 2017 [Member]
Summary of outstanding long-term debt balances
Total notes payable	15,334,000	15,334,000
LIBOR Plus 3.85%, Sun Life Floating Rate Note, Due May 3, 2014 [Member]
Summary of outstanding long-term debt balances
Total notes payable	3,000,000	3,000,000
4.15% Sun Life Senior Secured Guaranteed Note, Due June 1, 2017 [Member]
Summary of outstanding long-term debt balances
Total notes payable	2,989,552	2,989,552
Vehicle Loan [Member]
Summary of outstanding long-term debt balances
Total notes payable		$ 2,190