Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2013

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	2/2015
Champaign, Illinois	$	327,000	12/2014
Charlotte, North Carolina	$	62,000	3/2016
Hampstead, New Hampshire	$	28,000	8/2017
Pearl River, New York	$	93,000	8/2018
Pottsboro, Texas	$	18,000	8/2014
Stony Point, NY	$	116,000	6/2016
Tulsa, Oklahoma	$	26,000	12/2014

Summarized table of future commitments under operating leases

Future commitments under operating leases are summarized as follows:

Years ended December 31,	Amount
(in thousands)
- 2014	$	785
- 2015		315
-2016		202
-2017		124
-2018		70
Total	$	1,496