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Stock Based Compensation Expense - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employees options granted							0
Stock-based compensation	$ 458			$ 1,240			$ 2,943	$ 3,046
Common stock, shares issued	31,623,810						31,623,810		31,550,477
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 334			$ 1,139			$ 2,296	$ 2,958
Nonvested unamortized stock-based compensation, contractual term							1 year 6 months	1 year 10 months 24 days
Number of Shares, Granted	13,196	21,005	30,000		240,724		64,201	240,724
Number of Shares, Vested	19,000	28,505	192,266	4,000	23,478	1,000		23,478
Number of years of service before cliff vesting							3 years	3 years
Weighted Average Grant-Date Fair Value, Granted	$ 12.88	$ 14.28	$ 11.42		$ 14.81		$ 12.66	$ 14.81
Nonvested unamortized stock-based compensation other than options, value	$ 2,751			$ 6,069			$ 2,751	$ 6,069
Restricted Stock | Vested immediately
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested							21,005
Restricted Stock | Vest after 90 days
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested							7,500
Restricted Stock | Vest one-third each year
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested							3,196
Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 18			101			$ 222	$ 67
Nonvested unamortized stock-based compensation, contractual term							1 year 9 months 18 days	2 years 4 months 24 days
Number of Shares, Granted	3,196		7,500		79,270		10,696	79,270
Weighted Average Grant-Date Fair Value, Granted	$ 12.37		$ 10.96		$ 14.51
Nonvested unamortized stock-based compensation other than options, value	$ 686			$ 1,404			$ 686	$ 1,404
Cliff vesting date								May 23, 2017
Targeted performance percentage	200.00%			200.00%			200.00%	200.00%
Performance Based Restricted Stock | Performance Based Shares Based Upon Financial Performance of Earnings before Interest Tax ("EBIT") and Net Sales Goal for the Period Commencing January 1, 2015 and Ending December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting based on Performance							80.00%	80.00%
Earnings before income tax goal weight, percentage							50.00%	50.00%
Net sales goal weight, percentage							30.00%	30.00%
Performance Based Restricted Stock | Performance Based Shares Based Upon AVD Stock Price Appreciation Over the Course of the Period Commencing January 1, 2015, Ending December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting based on Performance							20.00%	20.00%
Performance Based Restricted Stock | Vest on January 5, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted							7,500
Cliff vesting date							Jan. 05, 2018
Performance Based Restricted Stock | Vest on August 1, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Granted							3,196
Cliff vesting date							Aug. 01, 2018
Performance Based Restricted Stock | Performance Based Shares Related to Net Income Weighted at 50%, Net Sales Weighted at 30%, Commencing January 1, 2015 and Ending December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted							$ 11.86
Performance Based Restricted Stock | Remaining 20% of Performance Based Shares are Based Upon AVD Stock Price Appreciation for the Period Commencing January 1, 2015 and Ending December 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted							$ 9.48
Incentive Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 94			$ 0			$ 325	$ 21
Nonvested unamortized stock-based compensation, value	1,009						$ 1,009
Nonvested unamortized stock-based compensation, contractual term							2 years 3 months 18 days
Performance Based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	12						$ 100
Nonvested unamortized stock-based compensation, value	$ 373						$ 373
Nonvested unamortized stock-based compensation, contractual term							2 years 2 months 12 days
Common stock, shares issued									0

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Share Based Compensation Arrangements Maximum Target

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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