Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 5,734	$ 2,944
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Depreciation and amortization	605	606
Allowance for doubtful accounts	30	40
Value of share-based payment arrangements	0	11
Amortization of deferred finance costs	16	31
Deferred tax asset utilization	307	1,725
Changes in assets and liabilities:
Trade accounts receivable	(15,964)	(11,466)
Inventories	(3,751)	6,613
Prepaid and other assets	(5,471)	(2,229)
Income taxes payable	3,266	0
Accounts payable and accrued expenses	22,171	(3,998)
Cash provided by (used in) operating activities	6,943	(5,723)
Cash flows from investing activities:
Additions to property, plant, and equipment	(369)	(133)
Cash used in investing activities	(369)	(133)
Cash flows from financing activities:
Payment of deferred acquisition costs	(528)	0
Proceeds from issuance of common stock	267	278
Proceeds from short-term debt - net	0	5,580
Repayment of long-term debt	(85)	(93)
Cash provided by (used in) financing activities	(346)	5,765
Increase (decrease) in cash and cash equivalents	6,228	(91)
Cash and cash equivalents at beginning of period	33,931	1,258
Cash and cash equivalents at end of period	40,159	1,167
Supplemental Disclosure of Cash Flow Information:
Cash paid during period for interest	$ 89	$ 241