Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 127,189	$ 54,129
Accounts receivable, net	44,108	59,227
Inventories	51,407	51,568
Other current assets	11,727	5,134
Total current assets	234,431	170,058
Property, equipment and improvements, net	13,096	11,507
Operating lease right-of-use assets	16,267	14,334
Intangible assets, net	113,542	121,248
Goodwill	227,533	210,135
Deferred tax assets	962	389
Other non-current assets	1,672	1,011
Assets	607,503	528,682
Current liabilities:
Current portion of long-term debt	0	1,972
Accounts payable	18,911	28,067
Accrued compensation	9,705	9,372
Unearned revenue	14,393	7,691
Contingent consideration on acquired business	3,000	4,228
Current portion of operating lease liabilities	2,714	2,527
Other current liabilities	8,138	7,373
Total current liabilities	56,861	61,230
Income taxes payable	1,914	1,958
Deferred tax liabilities	18,150	17,171
Long-term debt	45,541	58,980
Operating lease liability	18,842	16,193
Other non-current liabilities	7,043	1,650
Total liabilities	148,351	157,182
Commitments and Contingencies (see Note 15)
Stockholders' equity:
Preferred stock, $.01 par value; 2,000,000 shares authorized; none issued and outstanding	0	0
Common stock, $.01 par value; 60,000,000 shares authorized; 40,441,838 and 35,512,843 shares issued	404	355
Additional paid-in capital	364,604	279,741
Retained earnings	172,951	170,330
Accumulated other comprehensive loss	(22,212)	(23,817)
Treasury stock, at cost, 6,412,576 and 6,353,094 shares	(56,595)	(55,109)
Total stockholders' equity	459,152	371,500
Total liabilities and stockholders' equity	$ 607,503	$ 528,682