Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Current assets:
Cash and cash equivalents	$ 152,432	$ 54,129
Accounts receivable, net	43,738	59,227
Inventories	43,921	51,568
Other current assets	6,567	5,134
Total current assets	246,658	170,058
Property, equipment and improvements, net	12,132	11,507
Identifiable intangible assets, net	118,029	121,248
Goodwill	225,522	210,135
Deferred tax assets	439	389
Operating lease right-of-use assets	15,684	14,334
Other non-current assets	1,067	1,011
Total assets	619,531	528,682
Current liabilities:
Current portion of long-term debt	0	1,972
Accounts payable	22,586	28,067
Accrued compensation	12,934	9,372
Unearned revenue	13,589	7,691
Contingent consideration on acquired businesses	20	4,228
Current portion of operating lease liabilities	2,633	2,527
Other current liabilities	7,179	7,373
Total current liabilities	58,941	61,230
Income taxes payable	2,334	1,958
Deferred tax liabilities	13,493	17,171
Long-term Debt	45,799	58,980
Operating lease liabilities	18,368	16,193
Other non-current liabilities	8,079	1,650
Total liabilities	147,014	157,182
Commitments and Contingencies (see Note 16)
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; 40,653,035 and 35,512,843 shares issued	407	355
Additional paid-in capital	370,699	279,741
Retained earnings	180,692	170,330
Accumulated other comprehensive loss	(22,746)	(23,817)
Treasury stock, at cost, 6,390,645 and 6,353,094 shares	(56,535)	(55,109)
Total stockholders’ equity	472,517	371,500
Total liabilities and stockholders’ equity	$ 619,531	$ 528,682