Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 50,122	$ 25,359
Trade and other accounts receivable, net of allowance for doubtful accounts of $36 and $26 as of December 31, 2017 and 2016, respectively	31,643	20,441
Inventories	32,228	32,248
Prepaid expenses and other current assets	2,983	4,407
Total current assets	116,976	82,455
Property and equipment, net	28,044	26,120
Intangible assets, net	11,715	0
Goodwill	36,061	22,799
Pension asset	11,712	8,887
Other non-current assets	871	613
Total assets	205,379	140,874
Current liabilities:
Accounts payable and accrued liabilities	32,758	19,181
Accrued employee compensation	9,070	6,152
Deferred revenue and customer deposits	6,669	3,967
Short-term borrowings and current portion of long-term debt	33	40
Total current liabilities	48,530	29,340
Deferred tax liability, long-term	8,762	8,580
Long-term debt, excluding current portion	35,124	43
Defined benefit plan liability	3,942	0
Other long-term liabilities	2,920	2,089
Total liabilities	99,278	40,052
Commitments and contingencies (Note 13 and Note 15)
Stockholders’ equity:
Common stock, $0.10 par value per share, 80,000,000 shares authorized at December 31, 2017 and 2016; 37,199,519 and 32,135,029 shares issued and outstanding at December, 2017 and 2016, respectively	3,717	3,210
Additional paid-in capital	337,541	296,316
Accumulated deficit	(247,233)	(204,104)
Accumulated other comprehensive income	12,076	5,400
Total stockholders’ equity	106,101	100,822
Total liabilities and stockholders’ equity	$ 205,379	$ 140,874