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Stock Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2016	Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employees options granted							0
Stock-based compensation	$ 588			$ 458			$ 1,656	$ 2,943
Performance Incentive Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	11			12			64	100
Nonvested unamortized stock-based compensation expense, value	173						$ 173
Nonvested unamortized stock-based compensation expense, contractual term							1 year 2 months 12 days
Incentive Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	71			94			$ 252	325
Nonvested unamortized stock-based compensation expense, value	497			1,009			$ 497	$ 1,009
Nonvested unamortized stock-based compensation expense, contractual term							1 year 2 months 12 days	2 years 3 months 18 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 406			$ 334			$ 1,100	$ 2,296
Nonvested unamortized stock-based compensation expense, contractual term							1 year 9 months 18 days	1 year 6 months
Number of shares granted to employees	1,668	140,541		13,196	21,005	30,000	142,209	64,201
Number of Shares, Vested	2,566	22,639	127,274	19,000	28,505	192,266
Number of years of service before cliff vesting							3 years	3 years
Weighted Average Grant-Date Fair Value, Granted	$ 16.75	$ 15.08		$ 12.88	$ 14.28	$ 11.42	$ 15.10	$ 12.66
Unamortized Stock-Based Compensation other than options	$ 2,545			$ 2,751			$ 2,545	$ 2,751
Restricted Stock | Vested immediately
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested							21,139	21,005
Restricted Stock | Vest after three years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested							121,070	3,196
Restricted Stock | Vest after 90 days
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested								7,500
Performance Based Restricted Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	100			$ 18			$ 240	$ 222
Nonvested unamortized stock-based compensation expense, contractual term							1 year 4 months 24 days
Number of shares granted to employees		52,170		3,196		7,500	52,170	10,696
Weighted Average Grant-Date Fair Value, Granted		$ 14.39		$ 12.37		$ 10.96
Unamortized Stock-Based Compensation other than options	$ 857						$ 857
Targeted performance percentage	200.00%			200.00%			200.00%	200.00%
Performance Based Restricted Shares | Vested on January 6, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested								7,500
Cliff vesting date							Jan. 06, 2019	Jan. 05, 2018
Performance Based Restricted Shares | Performance Based Shares Based Upon Financial Performance of Earnings before Interest Tax ("EBIT") and Net Sales Goal for the Period Commencing July 1, 2015 and Ending June 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting based on Performance							80.00%
Earnings before income tax goal weight, percentage							50.00%
Net sales goal weight, percentage							30.00%
Performance Based Restricted Shares | Performance Based Shares Based Upon AVD Stock Price Appreciation Over the Course of the Period Commencing July 1, 2015, Ending June 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting based on Performance							20.00%
Earnings before income tax goal weight, percentage								20.00%
Performance Based Restricted Shares | Vested on August 1, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Vested								3,196
Cliff vesting date								Aug. 01, 2018
Performance Based Restricted Shares | Performance Based Shares Based Upon Financial Performance of Earnings before Interest Tax ("EBIT") and Net Sales Goal for the Period Commencing January 1, 2016 and Ending June 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares vesting based on Performance								80.00%
Earnings before income tax goal weight, percentage								50.00%
Net sales goal weight, percentage								30.00%
Performance Based Restricted Shares | Performance Based Shares Related to Net Income Weighted at 50%, Net Sales Weighted at 30%, Commencing July 1, 2015 and Ending June 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted							$ 15.08
Performance Based Restricted Shares | Remaining 20% of Performance Based Shares are Based Upon AVD Stock Price Appreciation for the Period Commencing July 1, 2015 and Ending June 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant-Date Fair Value, Granted							$ 11.63

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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