Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ 8,838,000	$ (3,555,000)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	739,000	1,033,000
Amortization of intangible assets	303,000	222,000
Amortization of debt financing costs	47,000	47,000
Stock-based compensation	1,786,000	999,000
Deferred income taxes	(388,000)	(1,891,000)
Change in sales returns reserve	678,000	(2,553,000)
Provision for obsolete inventory	57,000	439,000
Increase in fair value of contingent consideration		21,000
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	10,819,000	34,681,000
Inventories	12,108,000	5,981,000
Accounts payable	(15,669,000)	(11,192,000)
Prepaid expenses and other assets	(6,568,000)	(1,091,000)
Income taxes payable	3,086,000	(132,000)
Other liabilities	5,251,000	(5,483,000)
Net cash provided by operating activities	21,087,000	17,526,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(2,280,000)	(890,000)
Acquisition of a business, net of cash acquired	(2,500,000)
Net cash used for investing activities	(4,780,000)	(890,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings on revolving credit facilities	97,032,000	48,426,000
Repayment of revolving credit facilities	(97,032,000)	(63,780,000)
Proceeds from exercise of stock options and warrants	911,000	18,000
Repurchase of common stock to satisfy employee tax withholding obligations	(215,000)	(48,000)
Net cash provided by (cash used for) financing activities	696,000	(15,384,000)
Effect of exchange rate changes on cash and cash equivalents	(719,000)	(768,000)
Net increase in cash and cash equivalents	16,284,000	484,000
Cash and cash equivalents - beginning of period	46,681,000	8,249,000
Cash and cash equivalents - end of period	62,965,000	8,733,000
SUPPLEMENTAL DISCLOSURE OF INFORMATION
Cash paid for interest	64,000	161,000
Cash paid for income taxes	$ 5,000	$ 175,000