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Other Assets | 12 Months Ended
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Dec. 31, 2015
Other Assets [Abstract] |
Other Assets |
5. | Other Assets
Other assets consist of the following:
December 31, |  | 2015 |  |  | 2014 |
Patents, at cost |  | $ | 6,322 |  |  | $ | 6,113 |
Accumulated amortization |  |  | (3,629 | ) |  |  | (3,364 | )
Deposits on capital items |  |  | 16,839 |  |  |  | 19,011 |
Software development costs, at cost |  |  | 2,057 |  |  |  | 2,057 |
Accumulated amortization |  |  | (1,792 | ) |  |  | (1,381 | )
Other |  |  | 2,994 |  |  |  | 3,111 |
|  | $ | 22,791 |  |  | $ | 25,547 |
The capitalized cost of patents is amortized using the straight-line method over their useful lives. The cost of patent amortization was $0.3 million, $0.3 million, and $0.2 million in 2015, 2014, and 2013, respectively. The estimated annual patent amortization cost for each of the next five years is $0.3 million. Costs incurred to maintain existing patents are charged to expense in the year incurred. Software development costs were incurred to develop and implement an integrated ERP system prior to the time the system became operational. These costs are being amortized using the straight line method over a period of sixty months. Costs incurred subsequent to the system becoming operational are being expensed. The cost of software development cost amortization was $0.4 million, $0.4 million, and $0.5 million in 2015, 2014, and 2013, respectively.

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- Definition The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
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