Basis of Presentation of Interim Period Statements - Summary of Basic and Diluted Common Shares Outstanding (Detail) - shares shares in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015		Jun. 30, 2016	Jun. 30, 2015
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number of basic shares outstanding	7,210	7,151	[1]	7,209	7,143	[1]
Effect of dilutive securities	118	176		114	185
Weighted average number of diluted shares outstanding	7,328	7,327	[1]	7,323	7,328	[1]

[1] See Note 2. Restatement of Previously Issued Condensed Consolidated Financial Statements