Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2019

Revenue Recognition

Revenue by customer and timing recognition

Year Ended December 31, 2019	Work Truck Attachments	Work Truck Solutions	Total Revenue
Independent dealer	$ 293,630	$ 127,484	$ 421,114
Government	-	72,810	72,810
Fleet	-	66,306	66,306
Other	-	11,480	11,480
Total revenue	$ 293,630	$ 278,080	$ 571,710
Year Ended December 31, 2018	Work Truck Attachments	Work Truck Solutions	Total Revenue
Independent dealer	$ 275,244	$ 134,140	$ 409,384
Government	-	52,582	52,582
Fleet	-	58,500	58,500
Other	-	3,601	3,601
Total revenue	$ 275,244	$ 248,823	$ 524,067

Revenue by timing of revenue recognition was as follows:

Year Ended December 31, 2019	Work Truck Attachments	Work Truck Solutions	Total Revenue
Point in time	$ 293,630	$ 172,269	$ 465,899
Over time	-	105,811	105,811
Total revenue	$ 293,630	$ 278,080	$ 571,710
Year Ended December 31, 2018	Work Truck Attachments	Work Truck Solutions	Total Revenue
Point in time	$ 275,244	$ 153,873	$ 429,117
Over time	-	94,950	94,950
Total revenue	$ 275,244	$ 248,823	$ 524,067

Contract Balances

Year Ended December 31, 2019		Balance at Beginning of Period		Additions		Deductions		Balance at End of Period
Contract liabilities	$	2,006	$	16,082	$	(15,901)	$	2,187

Year Ended December 31, 2018		Balance at Beginning of Period		Additions		Deductions		Balance at End of Period
Contract liabilities	$	2,048	$	12,131	$	(12,173)	$	2,006