Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Rent Expense

Hudson utilizes leased facilities and operates equipment under non-cancelable operating leases through August 31, 2018 as follows:

Properties

Location	Annual Rent		Lease Expiration Date
Auburn, Washington	$	27,000	Month to Month
Baton Rouge, Louisiana	$	15,000	3/2015
Brentwood, Tennessee	$	70,000	Month to Month
Champaign, Illinois	$	340,000	12/2017
Charlotte, North Carolina	$	63,000	3/2016
Escondido, California	$	42,000	Month to Month
Hampstead, New Hampshire	$	28,000	8/2017
Nashville, Tennessee	$	143,000	2/2016
Ontario, California	$	85,000	12/2018
Pearl River, New York	$	93,000	8/2018
Pottsboro, Texas	$	10,000	8/2017
San Juan, Puerto Rico	$	53,000	Month to Month
Stony Point, New York	$	116,000	6/2016
Tulsa, Oklahoma	$	26,000	12/2017

Summarized table of future commitments under operating leases

Future commitments under operating leases are summarized as follows:

Years ended December 31,	Amount
(in thousands)
-2015	$	1,120
-2016		690
-2017		587
-2018		163
Total	$	2,560