|9 Months Ended|
Sep. 30, 2018
|Inventory Disclosure [Abstract]|
|Schedule of inventories||
Inventory is net of valuation adjustments of $1,513,000 and $2,678,000 as of September 30, 2018 and December 31, 2017, respectively. Inventory balances consisted of the following (in thousands):
Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef