Earnings Per Common Share - Computation of Earnings per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Basic EPS, Income Numerator	$ 855	$ (1,344)	$ 1,608	$ (970)
Dilutive effect of potential common stock options, Income Numerator	0	0	0	0
Diluted EPS, Income Numerator	$ 855	$ (1,344)	$ 1,608	$ (970)
Basic EPS, Common Shares Denominator	3,214,247	2,709,538	3,210,374	2,709,191
Dilutive effect of potential common stock options, Common Shares Denominator	31,620	30,379	23,562	40,506
Diluted EPS, Common Shares Denominator	3,245,867	2,739,917	3,233,936	2,749,697
Basic EPS	$ 0.27	$ (0.50)	$ 0.50	$ (0.36)
Dilutive effect of potential common stock options, EPS	0	0	0	0
Diluted EPS	$ 0.27	$ (0.50)	$ 0.50	$ (0.36)