Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net income (loss)	$ 2,417	$ (3,055)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Loss (income) from discontinued operation	26	(42)
Depreciation and amortization expense	4,178	4,223
Stock-based compensation expense	41	147
Amortization of debt issuance costs and debt discount	634	489
Deferred income taxes	599	250
Other, net	582	(45)
Changes in operating assets and liabilities:
Accounts receivable	(911)	(1,420)
Inventories	521	(4,382)
Prepaid expenses and other assets	1,138	309
Income taxes receivable, net	(1,384)	114
Accounts payable	(2,747)	403
Accrued expenses	(1,981)	(6,716)
Deferred revenue and customer deposits	177	(551)
Other liabilities	(86)	80
Cash provided by (used in) operating activities - continuing operations	3,204	(10,196)
Cash provided by (used in) operating activities - discontinued operation	(26)	42
Investing activities
Acquisitions of plant, equipment and leasehold improvements	(938)	(2,146)
Cash used in investing activities	(938)	(2,146)
Financing activities
Proceeds from Senior Credit Facility, net of discount	29,100
Debt issuance costs	(2,507)
Proceeds from Revolving Credit Facility		5,000
Payments on Revolving Credit Facility		(5,000)
Payments on finance lease obligations	(593)	(143)
Cash provided by (used in) financing activities	26,000	(143)
Effect of exchange rates on cash	(18)	34
Net increase (decrease) in cash and cash equivalents	28,222	(12,409)
Cash and cash equivalents, beginning of period	18,682	20,291
Cash and cash equivalents, end of period	46,904	7,882
Supplemental disclosures of cash flow information
Interest	5,538	5,736
Income taxes, net refunds	(232)	(41)
Right-of-use assets obtained in exchange for lease obligations- Operating leases	141
Right-of-use assets obtained in exchange for lease obligations- Financing leases	251
Accounts payable, and accrued expenses for acquisitions of plant, equipment and leasehold improvements	$ 345	$ 1,238