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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 57,049 $ 79,749
Short-term investments   3,143
Accounts receivable, net of allowances for doubtful accounts of $2,124 and $2,339, respectively 60,666 16,911
Inventories 26,388 17,139
Deferred costs 449 23,545
Prepaid and other current assets 6,776 14,227
Short-term restricted cash 8,827 12,099
Total current assets 160,155 166,813
Property, plant and equipment, net 1,258 1,714
Long-term investments 5,224 5,856
Long-term deferred costs   277
Long-term deferred tax assets 2,307 3,012
Long-term restricted cash 7,824 8,839
Other long-term assets 667 533
Total assets 177,435 187,044
Current liabilities:    
Accounts payable 50,757 27,452
Income taxes payable 6,996 7,952
Customer advances 561 21,828
Deferred revenue 968 7,286
Other current liabilities 10,511 23,746
Total current liabilities 69,793 88,264
Long-term deferred revenue 2,979 4,135
Other long-term liabilities 2,497 3,653
Total liabilities 75,269 96,052
Commitments and contingencies (Note 8)
Shareholders' equity:    
Ordinary shares: $0.00375 par value; 250,000 authorized shares; 39,799 and 39,363 shares issued at December 31, 2018 and December 31, 2017, respectively; 35,318 and 35,506 shares outstanding at December 31, 2018 and December 31, 2017, respectively 123 122
Additional paid-in capital 1,264,160 1,263,006
Treasury stock, at cost: 4,481 and 3,857 shares at December 31, 2018 and December 31, 2017, respectively (10,899) (8,374)
Accumulated deficit (1,212,790) (1,226,173)
Accumulated other comprehensive income 61,572 62,411
Shareholders’ equity 102,166 90,992
Total liabilities and shareholders' equity $ 177,435 $ 187,044