Douglas Dynamics, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Employee Stock Plans (Details)

Employee Stock Plans (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 31, 2015	Sep. 30, 2014	Mar. 31, 2014	Dec. 31, 2014
2010 Plan
Stock-based compensation
Maximum number of shares of common stock that may be issued	2,130,000
Restricted Stock Share Awards
Shares
Unvested at the beginning of the period (in shares)	85,021
Vested (in shares)	28,701
Cancelled and forfeited (in shares)	0
Unvested at the end of the period (in shares)	56,320			85,021
Expected to vest in the future, at the end of the period (in shares)	54,292
Weighted Average Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 13.02
Granted (in dollars per share)	$ 0.00
Vested (in dollars per share)	$ 14.68
Unvested at the end of the period (in dollars per share)	$ 12.17			$ 13.02
Expected to vest in the future, at the end of the period (in dollars per share)	$ 12.17
Weighted Average Remaining Contractual Term
Unvested at the beginning of the period	3 months			6 months 4 days
Unvested at the end of the period	3 months			6 months 4 days
Expected to vest in future, at the end of the period	3 months
Recognized and unrecognized compensation expense with weighted average recognition period
Compensation expenses recognized	$ 165		$ 215
Unrecognized compensation expense, net of expected forfeitures, calculated under the fair value method for shares expected to vest	194
Weighted average period over which unrecognized compensation expense is expected to be recognized		3 months
Performance Share Unit Awards \| 2010 Plan
Weighted Average Grant Date Fair Value
Granted (in dollars per share)	$ 22.63
Recognized and unrecognized compensation expense with weighted average recognition period
Vesting period of awards	2 years
Compensation expenses recognized	127		49
Unrecognized compensation expense, net of expected forfeitures, calculated under the fair value method for shares expected to vest	1,327
Restricted Stock Unit Awards
Shares
Unvested at the beginning of the period (in shares)	81,623
Granted (in shares)	116,141
Vested (in shares)	103,157
Cancelled and forfeited (in shares)	(1,882)
Unvested at the end of the period (in shares)	92,725			81,623
Expected to vest in the future, at the end of the period (in shares)	89,387
Weighted Average Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 15.05
Granted (in dollars per share)	$ 18.72
Vested (in dollars per share)	$ 17.22
Cancelled and forfeited (in dollars per share)	$ 15.82
Unvested at the end of the period (in dollars per share)	$ 17.24			$ 15.05
Expected to vest in the future, at the end of the period (in dollars per share)	$ 17.24
Weighted Average Remaining Contractual Term
Unvested at the beginning of the period	1 year 1 month 21 days			1 year 1 month 2 days
Granted	8 months 27 days
Unvested at the end of the period	1 year 1 month 21 days			1 year 1 month 2 days
Expected to vest in future, at the end of the period	1 year 1 month 21 days
Recognized and unrecognized compensation expense with weighted average recognition period
Compensation expenses recognized	832		758
Unrecognized compensation expense, net of expected forfeitures, calculated under the fair value method for shares expected to vest	1,196
Restricted Stock Unit Awards \| Non-employee director
Recognized and unrecognized compensation expense with weighted average recognition period
Number of shares issued upon exercise of units other than options	1
Restricted Stock Unit Awards \| Management
Recognized and unrecognized compensation expense with weighted average recognition period
Minimum age of employee, attaining which awards are continued to be vested upon retirement	65
Minimum service period, upon serving which awards are continued to be vested upon retirement	10 years
Minimum age of employee along with service period condition, attaining which awards are continued to be vested upon retirement	55
Accelerated stock based compensation expense	$ 303		$ 278
Restricted Stock Unit Awards \| Common Stock \| Management
Recognized and unrecognized compensation expense with weighted average recognition period
Number of shares issued upon exercise of units other than options	1
Restricted Stock Unit Awards \| 2010 Plan
Recognized and unrecognized compensation expense with weighted average recognition period
Maximum period following a termination of service in which the share-based award will be settled	2 months 15 days
Stock Options \| A&R 2004 Plan
Stock-based compensation
Shares reserved for issuance	37,240
Expiration period	10 years
Number of shares of common stock available for grant	0
Options
Exercised (in shares)	0