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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 4,723	$ 2,102
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	1,025	1,094
Amortization	461
Non-cash reserve charges	(9)	(35)
Stock-based compensation	1,124	509
Non-cash lease expense	237	414
Provision (benefit) for deferred income taxes	(392)	126
Gain on change in fair value of contingent consideration	(100)
Change in operating assets and liabilities, net of the effects of acquisitions:
Accounts receivable	808	(4,473)
Prepaid and other assets	(669)	191
Accounts payable and other accrued expenses	(1,020)	(1,570)
Inventory	(4,604)	(2,398)
Deposits	(6)	(238)
Net cash provided by (used in) operating activities	1,578	(4,278)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(212)	(354)
Net cash used in investing activities	(212)	(354)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on finance lease obligations	(58)	(44)
Cash dividends paid	(3,613)
Purchase of treasury stock	(10,655)	(2,120)
Proceeds from the issuance of common stock on stock-based awards	14	88
Principal payments on long-term debt	(2,667)
Taxes withheld and paid on employees' equity awards	(122)	(135)
Net cash used in financing activities	(17,101)	(2,211)
Net decrease in cash	(15,735)	(6,843)
Cash at beginning of period	42,612	39,173
Cash at end of period	26,877	32,330
Supplemental disclosure of cash flow information:
Cash paid for interest	(208)	(54)
Cash paid for rent	(1,965)	(1,069)
Cash paid for income taxes	(3,926)	(335)
Supplemental disclosure of non-cash investing and financing activities:
Right-of-use assets obtained in exchange for new operating lease liabilities	211	13,247
Right-of-use assets obtained in exchange for new finance lease liabilities		162
Inventory transferred to property and equipment as demo devices		519
Inventory transferred to property and equipment under lease	788	$ 473
Capital expenditures not yet paid	$ 48

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