Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014
Income Tax Contingency [Line Items]
Deferred tax liability recorded	$ 0
Unrecognized tax benefits	34,000
Expiration period of unrecognized tax benefits due to lapse in statue of limitations	Within the next 12 months
Expiring in the Next Twelve Months [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefits	22,000
State [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	20,392,000
Operating loss carry forwards expiration period	2018
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforwards	18,000
Capital loss carryforwards	$ 940,000
Capital loss carry forwards expiration period	Capital loss carryforwards of $940 which do not expire.
Operating loss carry forwards expiration period	2026