Consolidated Statements of Cash Flows Increase (Decrease) in Cash and Cash Equivalents - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net (loss) income	$ (3,056)	$ 5,734
Adjustments to reconcile net (loss) income to cash provided by operating activities:
Depreciation	1,012	483
Amortization of intangible assets	742	122
Amortization of step-up of basis in inventories	1,080	0
Allowance for doubtful accounts	4	30
Value of share-based payment arrangements	27	0
Amortization of deferred finance costs	241	16
Deferred tax expense (benefit)	(1,064)	307
Changes in assets and liabilities:
Trade accounts receivable	(12,026)	(15,964)
Inventories	472	(3,751)
Prepaid and other assets	2,911	(5,471)
Income taxes payable	0	3,266
Accounts payable and accrued expenses	19,160	22,171
Cash provided by operating activities	9,503	6,943
Cash flows from investing activities:
Additions to property, plant, and equipment	(206)	(369)
Cash used in investing activities	(206)	(369)
Cash flows from financing activities:
Payment of deferred acquisition costs	0	(528)
Proceeds from issuance of common stock	17	267
Repayment of short-term debt	(13,075)	0
Repayment of long-term debt	(263)	(85)
Cash used in financing activities	(13,321)	(346)
Increase (decrease) in cash and cash equivalents	(4,024)	6,228
Cash and cash equivalents at beginning of period	5,002	33,931
Cash and cash equivalents at end of period	978	40,159
Supplemental Disclosure of Cash Flow Information:
Cash paid during period for interest	$ 2,930	$ 89