Summary of Significant Accounting Policies - Additional information (Detail)		12 Months Ended
	Nov. 01, 2015 USD ($)	Dec. 31, 2016 USD ($) Ownership $ / Assessment	Dec. 31, 2015 USD ($)	Dec. 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Allowance for credit losses		$ 125,000	$ 125,000
Capitalized real estate costs, net of accumulated depreciation		735,000	285,000
Depreciation expense		27,000	0
Unamortized debt issue costs		99,396	197,959
Settlement costs with associations		654,750	805,180
Unamortized debt issuance costs		$ 99,396	$ 197,959
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		20 years
First Mortgage [Member] | Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		3 years
Special Product [Member]
Summary Of Significant Accounting Policies [Line Items]
Delinquent assessments maximum due period purchases basis		48 months
Subsidiaries
Summary Of Significant Accounting Policies [Line Items]
Number of members | Ownership		2
Maximum statutory delinquent assessments rate		18.00%
Maximum administrative late fees | $ / Assessment		25
Percentage of maximum administrative late fees on delinquent assessment		5.00%
Credit insurance purchases basis on delinquent assessments period		6 months	6 months
Recoveries under credit insurance program		$ 95,000	$ 236,000
Minimum acquisition cost that requires capitalization to fixed assets		500
Capitalized software costs, net of accumulated amortization		68,470	91,729
Amortization expense for capitalized software costs		23,259	23,259
Unamortized debt issue costs		99,396	197,959
Settlement costs with associations		654,750	805,180
Fair value of properties		135,000	237,000
Unamortized debt issuance costs		$ 99,396	197,959
Subsidiaries | Minimum [Member] | Furniture [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		3 years
Subsidiaries | Minimum [Member] | Computer [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		3 years
Subsidiaries | Minimum [Member] | Office Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		3 years
Subsidiaries | Maximum [Member] | Furniture [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		5 years
Subsidiaries | Maximum [Member] | Computer [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		5 years
Subsidiaries | Maximum [Member] | Office Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives		5 years
Subsidiaries | Special Product [Member]
Summary Of Significant Accounting Policies [Line Items]
Delinquent assessments maximum due period purchases basis				48 months
Allowance for credit losses		$ 125,000	125,000
Subsidiaries | Original Product [Member]
Summary Of Significant Accounting Policies [Line Items]
Allowance for credit losses		$ 0	$ 0
Subsidiaries | CRE Funding LLC [Member]
Summary Of Significant Accounting Policies [Line Items]
Purchase amount of minority interest	$ 250,000
Percentage held by minority interest	5.00%