Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 41,685			$ 13,434
Restricted cash	0			1,142
Trade accounts receivable, net of allowance for credit losses of $499 and $496, respectively	20,710			21,215
Inventories	22,156			22,565
Prepaid expenses and other current assets	2,006			1,695
Total current assets	86,557			60,051
Property and equipment:
Machinery and equipment	6,829			6,625
Leasehold improvements	3,581			3,242
Gross property and equipment	10,410			9,867
Less: accumulated depreciation	(7,267)			(6,735)
Net property and equipment	3,143			3,132
Right-of-use assets, net	4,755			5,770
Goodwill	21,578			21,605
Net Carrying Amount	16,959			18,559
Deferred tax assets	1,381			280
Restricted certificates of deposit	100			100
Other assets	945			569
Total assets	135,418			110,066
Current liabilities:
Current portion of Term Note	4,100			4,100
Current portion of operating lease liabilities	1,730			1,645
Accounts payable	7,296			7,394
Accrued wages and benefits	4,030			3,907
Accrued professional fees	1,188			884
Customer deposits and deferred revenue	4,398			4,498
Accrued sales commissions	1,176			1,468
Domestic and foreign income taxes payable	1,119			1,409
Other current liabilities	1,557			1,564
Total current liabilities	26,594			26,869
Operating lease liabilities, net of current portion	3,501			4,705
Term Note, net of current portion	8,967			12,042
Contingent consideration	1,002			1,039
Deferred revenue, net of current portion	1,033			0
Other liabilities	397			455
Total liabilities	41,494			45,110
Commitments and Contingencies
Stockholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued or outstanding	0			0
Common stock, $0.01 par value; 20,000,000 shares authorized; 12,237,070 and 11,063,271 shares issued, respectively	122			111
Additional paid-in capital	53,960			31,987
Retained earnings	40,741			32,854
Accumulated other comprehensive earnings	2			218
Treasury stock, at cost; 75,758 and 34,308 shares, respectively	(901)			(214)
Total stockholders' equity	93,924	$ 92,064	$ 68,498	64,956	$ 60,421	$ 58,120	$ 56,001	$ 54,823
Total liabilities and stockholders' equity	$ 135,418			$ 110,066