CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 2,805	$ 22,239
Restricted cash	8,765	321
Accounts receivable, net of allowance of $1,634 and $1,971, respectively	59,280	93,077
Raw material	4,210	6,893
Finished goods	699	1,204
Inventory reserve	(981)	(1,798)
Costs and estimated earnings in excess of billings	52,696	45,491
Assets held for sale	22,832
Other current assets	7,936	4,608
Total current assets	158,242	172,035
Property, plant and equipment, net	12,596	33,822
Goodwill	36,456	50,319
Intangible assets, net	24,801	44,003
Other long-term assets	747	851
Total assets	232,842	301,030
Current liabilities:
Accounts payable	19,076	16,861
Accrued compensation and benefits	10,640	15,587
Billings in excess of costs and estimated earnings	6,754	10,098
Accrued warranties	5,806	8,050
Liabilities related to assets held for sale	1,151
Other current liabilities	33,915	28,605
Total current liabilities	77,342	79,201
Long-term debt	45,341	70,000
Deferred tax liabilities	15,499	14,982
Other long-term liabilities	7,526	6,080
Total liabilities	145,708	170,263
Commitments and contingencies (Note 15)
Stockholders' equity:
Common stock, $0.01 par value, 170,000,000 shares authorized and 18,855,409 and 18,571,411 shares issued, respectively, and 17,485,941 and 17,261,276 shares outstanding, respectively	188	186
Paid-in capital	76,708	74,841
Accumulated other comprehensive loss	(9,513)	(7,618)
Retained earnings	19,764	63,371
Treasury stock, at par (1,369,468 and 1,310,135 common shares, respectively)	(13)	(13)
Total stockholders' equity	87,134	130,767
Total liabilities and stockholders' equity	$ 232,842	$ 301,030