Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash Flows From Operating Activities:
Net income (loss)	$ 14.9	$ 1.6	$ 23.0	$ (7.3)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	1.2	1.4	2.5	2.7
Non-cash interest expense			0.1	0.1
Stock-based compensation	0.4	0.3	0.8	0.6
Goodwill impairment				9.5
Restructuring charge		1.5		1.5
Changes in operating assets and liabilities:
Trade accounts receivable	1.6	1.2	(36.5)	(35.0)
Inventories, net	2.3	38.8	(14.6)	30.9
Trade accounts payable	(4.7)	(22.6)	22.2	6.1
Other	0.3	2.5	2.0	1.2
Cash provided by (used in) continuing operating activities	16.0	24.7	(0.5)	10.3
Cash used in discontinued operating activities	(0.3)		(0.3)	(0.1)
Total cash provided by (used in) operating activities	15.7	24.7	(0.8)	10.2
Cash Flows From Investing Activities:
Capital expenditures	(0.3)	(0.4)	(0.5)	(0.8)
Total cash used in investing activities	(0.3)	(0.4)	(0.5)	(0.8)
Cash Flows From Financing Activities:
Borrowings (repayments) of debt, net	(16.9)	(22.9)	4.1	(9.8)
Repurchase of shares to satisfy employee tax withholdings			(0.2)
Total cash provided by (used in) financing activities	(16.9)	(22.9)	3.9	(9.8)
Net increase (decrease) in cash and equivalents	(1.5)	1.4	2.6	(0.4)
Cash and equivalents, beginning of period	4.4	0.4	0.3	2.2
Cash and equivalents, end of period	2.9	1.8	2.9	1.8
Supplemental Disclosure of Cash Flow Information:
Interest paid	0.6	1.0	1.2	2.2
Income taxes paid	0.4	0.3	0.4	0.4
Non-cash financing activities:
Assets acquired with debt obligations	$ 1.0	$ 0.2	$ 1.1	$ 0.2