XML 30 R32.htm IDEA: XBRL DOCUMENT v2.4.0.6
Capital Lease Obligations - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Subsequent Event [Member]
Capital Leased Assets [Line Items]      
Cost of capitalized leased equipment $ 26,000 $ 236,000  
Accumulated amortization of capitalized leased equipment 17,000 93,000  
Amortization expense for capitalized leased equipment 19,000 53,000  
Future minimum lease payments     $ 5,000