Annual report pursuant to Section 13 and 15(d)

Income Tax - Additional Information (Detail)

v3.6.0.2
Income Tax - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Holiday [Line Items]                      
Income tax (expense) benefit $ (18,000) $ (41,000) $ (36,000) $ (47,000) $ (41,000) $ (24,000) $ (76,000) $ 23,000 $ (141,000) $ (118,000) $ (26,000)
Net deferred tax liabilities 0       0       0 0  
Deferred tax assets, operating loss carryforwards, subject to expiration 70,000,000               $ 70,000,000    
State net operating loss carryforward expiration period                 2034    
Federal net operating loss carryforward expiration period                 2034    
Income tax examination, description                 We have no examinations in progress, none are expected at this time, and years 2013 through 2015 are open.    
Uncertain tax positions 0       0       $ 0 0  
Accrued interest and penalties 0       0       0 0  
Interest and penalties recognized during the period                 0 0 0
TRS [Member]                      
Income Tax Holiday [Line Items]                      
Income tax (expense) benefit                 $ 0 0 0
Effective income tax rate reconciliation, at federal statutory income tax rate, Percent                 35.00%    
Effective income tax rate reconciliation, State and local income taxes, Percent                 5.00%    
Net deferred tax liabilities $ 0       $ 0       $ 0 $ 0  
Additional Paid-in Capital [Member] | TRS [Member]                      
Income Tax Holiday [Line Items]                      
Tax impact on additional paid in capital                     $ 1,900,000