Other Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Other Accrued Liabilities    
Accrued compensation $ 313 $ 667
Accrued professional fees 167 210
Accrued franchise and property taxes 107 95
Accrued interest 104  
Accrued other 144 115
Total other accrued liabilities $ 835 $ 1,087