Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Excess tax benefit	$ 73,000	$ 0
Unrecognized Tax Benefits	0
Deferred Tax Assets Reversed	42,000	2,000
Accrued Interest Or Penalties	0	$ 0
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 30,600,000
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2018
Minimum [Member]
Income Tax Contingency [Line Items]
Open tax years	2012
Maximum [Member]
Income Tax Contingency [Line Items]
Open tax years	2014
Valley Green Bank [Member]
Income Tax Contingency [Line Items]
Business combination, deferred tax assets	$ 2,500,000