XML 50 R36.htm IDEA: XBRL DOCUMENT v3.7.0.1
Income Taxes - Additional Information (Detail)
 3 Months Ended
Mar. 31, 2017
USD ($)
Income Taxes [Line Items]  
Net deferred tax asset $ 0
Income tax expense 0
Dividend from subsidiaries $ 0.022
Estimated annual effective tax rate 31.02%
Effective tax rate 0.00%
Federal [Member]  
Income Taxes [Line Items]  
Net operating loss carryforwards $ 2,200,000
Net operating loss carryforwards subject to expiration $ 156,500,000
Net operating loss carryforwards expiration year 2025
Net operating loss carryforwards expiration year 2036
Foreign [Member]  
Income Taxes [Line Items]  
Net operating loss carryforwards $ 1,500,000
Net operating loss carryforwards subject to expiration $ 26,700,000