Annual report pursuant to Section 13 and 15(d)

Related-Party Transactions - Summary of Management Fees, Incentive Fees and Associated Credits and Administration Fees (Detail)

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Related-Party Transactions - Summary of Management Fees, Incentive Fees and Associated Credits and Administration Fees (Detail) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Management Fee:        
Allocated payroll and benefits   $ 38,668 $ 224,931 $ 198,053
Allocated overhead expenses   7,538 42,349 43,013
Prior management advisory fee   46,206 267,280 241,066
Amended base management fee   149,403    
Total management fee   195,609 267,280 241,066
Incentive Fee:        
Incentive Fee 41,037 41,037 0  
Credit from voluntary, irrevocable waiver by Adviser's board of directors   (41,037)    
Net incentive fee           
Administration Fee:        
Allocated payroll and benefits   14,034 143,381 51,323
Allocated overhead expenses   4,498 37,017 17,114
Prior administration fee   18,532 180,398 68,437
Amended administration fee   175,932    
Total administration fee   $ 194,464 $ 180,398 $ 68,437