Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 10,282	$ 37,678
Accounts receivable - net (Note 5)	86,123	76,582
Inventories - net (Note 6)	124,504	102,730
Prepaid income tax (Note 14)	437	188
Other current assets	5,326	9,120
Total current assets	226,672	226,298
Property, plant, and equipment - net (Note 7)	86,857	96,096
Other assets:
Goodwill (Note 4)	19,258	19,785
Other intangibles - net (Note 4)	49,836	57,440
Other assets	626	2,124
Total assets	383,249	401,743
Current liabilities:
Accounts payable	78,269	52,404
Deferred revenue (Note 9)	6,619	10,136
Accrued payroll and employee benefits	12,993	11,888
Accrued warranty (Note 19)	2,057	8,682
Current maturities of long-term debt (Note 10)	629	656
Other accrued liabilities	13,624	9,764
Total current liabilities	124,191	93,530
Long-term debt (Note 10)	74,353	129,310
Deferred tax liabilities (Note 14)	5,287	6,914
Other long-term liabilities	17,299	17,493
Stockholders' equity:
Common stock, par value $0.01, authorized 20,000,000 shares; shares issued at December 31, 2018 and December 31, 2017, 11,115,779; shares outstanding at December 31, 2018 and December 31, 2017, 10,366,007 and 10,340,576, respectively (Note 11)	111	111
Paid-in capital	48,040	45,017
Retained earnings	114,324	145,797
Treasury stock - at cost, common stock, shares at December 31, 2018 and December 31, 2017, 749,772 and 775,203, respectively (Note 11)	(18,165)	(18,662)
Accumulated other comprehensive loss (Note 12)	(22,191)	(17,767)
Total stockholders' equity	122,119	154,496
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 383,249	$ 401,743