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Stock Based Compensation Expense - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Mar. 31, 2014 | Jun. 30, 2014 | Jun. 30, 2013
Performance Shares |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense |  |  | $ 34 | $ 26
Number of Shares, Granted | 79,270 |  | 79,270 | 26,942
Number of shares vested |  |  |  |
Number of years of service before cliff vesting |  |  |  | 3 years
Weighted Average Grant-Date Fair Value, Granted | $ 14.23 |  |  |
Nonvested unamortized stock-based compensation expense, contractual term |  |  | 2 years 7 months 6 days |
Cliff vesting date |  |  | May 23, 2017 |
Targeted performance percentage | 200.00% |  | 200.00% | 200.00%
Unamortized stock-based compensation expense | 1,559 |  | 1,559 |
Performance Shares | Performance based shares based upon financial performance of earnings before income tax ("EBIT") and net sales goal for the period commencing April 1, 2014 and ending December 31, 2016 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted Average Grant-Date Fair Value, Granted |  |  | $ 14.92 |
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 Shares | Performance based shares based upon AVD stock price appreciation over the course of the period commencing April 1, 2014 and ending December 31, 2016 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted Average Grant-Date Fair Value, Granted |  |  | $ 11.47 |
Percentage of shares vesting based on Performance |  |  | 20.00% |
Performance Shares | Performance based shares based upon net income and net sales for the period commencing April 1, 2013 and ending December 31, 2015 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Percentage of shares vesting based on Performance |  |  |  | 80.00%
Performance Shares | Performance based shares based upon AVD stock price appreciation over the course of the period commencing June 6, 2013 and ending on December 31, 2015 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Percentage of shares vesting based on Performance |  |  |  | 20.00%
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense |  |  | 1,819 | 1,297
Nonvested unamortized stock-based compensation expense, value | 7,153 |  | 7,153 |
Number of Shares, Granted | 240,724 |  | 240,724 | 154,114
Number of shares vested | 23,478 | 1,000 |  | 8,230
Number of years of service before cliff vesting |  |  | 3 years | 3 years
Weighted Average Grant-Date Fair Value, Granted | $ 14.81 |  | $ 14.81 | $ 31.22
Nonvested unamortized stock-based compensation expense, contractual term |  |  | 2 years 1 month 6 days |
Restricted Stock | Vest one-third each year |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares expected to vest |  |  |  | 3,000
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-based compensation expense |  |  | 21 | 423
Nonvested unamortized stock-based compensation expense, value | $ 0 |  | $ 0 |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued 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). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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